Introduction to Mass Communication

The big picture

Most people meet mass communication before they are fully awake. A phone alarm rings, headlines scroll past, music streams, video plays, and dozens of advertisements appear, often before breakfast. All of it is mass communication at work. Mass communication is the process by which a person, group, or organization builds a message and sends it through a medium to a large, anonymous, and scattered audience. This course studies that process, the industries that carry it out, and the effects it has on culture and society. The first task is to define the terms clearly and to see how a message actually travels from a sender to millions of receivers.

Key idea: Mass communication sends a message through a medium to a large, diverse, and physically separated audience, rather than to one person face to face.

From communication to mass communication

Communication in general is the sharing of meaning through symbols such as words, images, or sounds. Interpersonal communication happens among a few people who can respond to one another directly, as in a conversation. Mass communication differs on several points. The audience is large and mostly unknown to the sender. The message travels through a technological medium, such as print, broadcast, or the internet. Feedback is usually delayed and limited, arriving later as sales figures, ratings, letters, or comments. The senders are also typically formal organizations, such as a newspaper, a studio, or a network, rather than private individuals.

Key idea: Compared with a conversation, mass communication reaches a large unknown audience through a medium and receives slower, more limited feedback.

Models of the process

Scholars use models to picture how communication works. An early and influential one is the transmission model, often traced to the engineer Claude Shannon, who in 1948 diagrammed communication as a source that encodes a message and sends it as a signal through a channel to a receiver that decodes it, with noise as anything that interferes. Harold Lasswell captured the same idea in a famous question: who says what, in which channel, to whom, and with what effect.

Later models added feedback, the audience response that lets senders adjust, and stressed that receivers actively interpret messages rather than simply absorbing them. Each element, the source, message, channel, receiver, noise, and feedback, is a point where meaning can be shaped, strengthened, or lost. Naming these parts gives you a vocabulary for analyzing any media message.

Key idea: The transmission model breaks communication into source, message, channel, receiver, noise, and feedback, and every stage can change the meaning that finally arrives.

Gatekeeping and convergence

Because time and space are limited, media organizations cannot publish everything. Gatekeeping is the process by which editors, producers, and algorithms decide which messages pass through to the audience and which are held back. A newspaper editor choosing the front page and a platform ranking a feed are both gatekeepers. In recent decades, convergence has reshaped the whole system. Media convergence is the merging of once separate technologies and industries, so a single smartphone now delivers the text, audio, video, and games that used to require a newspaper, a radio, a television, and an arcade.

Key idea: Gatekeepers select which messages reach the public, and convergence has collapsed formerly separate media into shared digital platforms.

From broadcasting to networks

Traditional mass communication was a one-to-many system: a few large organizations broadcast to an audience that mostly listened. Digital networks have added a many-to-many pattern, in which ordinary users also produce and share messages that can reach millions. A single video or post can now rival a network broadcast in audience size. This does not mean the old model has vanished, since large companies still dominate attention and revenue, but the audience is no longer only on the receiving end. Understanding this shift is central to studying media today.

Key idea: The internet has layered a many-to-many network on top of the older one-to-many broadcast model, turning audiences into producers as well as receivers.

Common misconceptions

• Mass communication and mass media are the same thing. Mass communication is the process; mass media are the technologies and organizations that carry it.
• Audiences passively soak up whatever media send. Receivers actively select, interpret, and often resist or reshape messages.
• Feedback in mass communication is immediate. It is usually delayed and indirect, arriving as ratings, sales, or later comments.
• Convergence just means better gadgets. It also merges industries, business models, and audiences that were once separate.

Recap

• Mass communication sends a message through a medium to a large, diverse, and scattered audience.
• It differs from interpersonal communication in audience size, the use of a medium, and delayed feedback.
• The transmission model names the source, message, channel, receiver, noise, and feedback.
• Gatekeepers decide which messages reach the public, and convergence has merged once separate media.
• Digital networks add a many-to-many pattern in which audiences also become producers.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 1: Media and culture. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. Shannon, C. E. (1948). A mathematical theory of communication. Bell System Technical Journal, 27(3), 379-423. doi.org/10.1002/j.1538-7305.1948.tb01338.x
3. Bandura, A. (2001). Social cognitive theory of mass communication. Media Psychology, 3(3), 265-299. doi.org/10.1207/S1532785XMEP0303_03
4. Pew Research Center. (2024). News platform fact sheet. pewresearch.org

The big picture

How much do the media actually change what people think and do? For a century, researchers have circled that question, and their answers have swung back and forth. Early observers feared that propaganda could inject ideas straight into a helpless public. Later studies found that people filter messages through friends, values, and prior beliefs. Today most scholars accept that media effects are real but conditional, shaped by the message, the audience, and the situation. This lesson surveys the major theories of media effects, the tools you will use for the rest of the course to explain how media shape attention, understanding, and behavior.

Key idea: Media effects are real but conditional, and each major theory identifies a specific way that media influence audiences.

From magic bullets to limited effects

The earliest view, sometimes called the magic bullet or hypodermic needle model, imagined media messages striking every audience member with uniform force. Reactions to 1930s propaganda and radio dramas seemed to support it. Careful research soon complicated the picture. Studying voters in the 1940s, Paul Lazarsfeld and colleagues found that media rarely changed minds directly. Instead, ideas often flowed in a two-step process, from media to influential opinion leaders and then, through conversation, to others. This limited-effects tradition, developed further by Elihu Katz, showed that personal networks filter and reshape media messages.

Key idea: Research replaced the magic bullet image with a two-step flow in which opinion leaders and social networks mediate media influence.

Agenda-setting and framing

Even when media do not tell people what to think, they may tell people what to think about. In a 1972 study of an election, Maxwell McCombs and Donald Shaw found that the issues voters rated as most important matched the issues the news covered most. They called this the agenda-setting function of the press. Closely related is framing. As Robert Entman explained in 1993, to frame is to select some aspects of an issue and make them more salient, promoting a particular definition, cause, or remedy. Describing a policy as a "relief" or a "burden" frames the same facts in opposite ways.

Key idea: Agenda-setting shapes which issues seem important, while framing shapes how an issue is understood by emphasizing some features over others.

Cultivation and the spiral of silence

Some effects build up slowly. George Gerbner's cultivation theory argues that heavy television viewing gradually shapes viewers' sense of reality. Because television overrepresents crime and violence, heavy viewers tend to see the world as more dangerous than it is, a pattern Gerbner called the mean world syndrome. A different long-term effect concerns speech. Elisabeth Noelle-Neumann's spiral of silence proposes that people who sense their opinion is in the minority tend to stay quiet, which makes the dominant view seem even stronger and further silences dissent. Both theories describe cumulative influence rather than a single dramatic effect.

Key idea: Cultivation and the spiral of silence describe slow, cumulative effects on perceptions of reality and on the willingness to speak.

The active audience: uses and gratifications

Most theories ask what media do to people. The uses and gratifications approach flips the question to ask what people do with media. Developed by Elihu Katz, Jay Blumler, and Michael Gurevitch in the 1970s, it treats audiences as active users who choose media to satisfy needs, such as information, personal identity, social connection, and entertainment. A person may stream a comedy to relax, follow the news to feel informed, or scroll a feed to feel connected. The same program can serve different needs for different viewers, so effects depend heavily on what audiences seek.

Key idea: Uses and gratifications treats audiences as active choosers who select media to meet needs for information, identity, connection, and entertainment.

Common misconceptions

• Media inject ideas directly into a passive public. The magic bullet view was discarded once research showed audiences filter messages through networks and beliefs.
• Agenda-setting means the media tell people what to think. It mainly shapes what people think about, not the specific opinions they hold.
• Framing is the same as lying. Framing selects and emphasizes true facts; it shapes interpretation without necessarily being false.
• Cultivation happens after one program. It describes gradual effects that build only with heavy, long-term exposure.

Recap

• Views of media power moved from strong magic-bullet effects to limited effects to active audiences.
• The two-step flow shows opinion leaders and social networks mediating media messages.
• Agenda-setting shapes issue importance; framing shapes how issues are understood.
• Cultivation and the spiral of silence describe slow, cumulative effects.
• Uses and gratifications treats audiences as active users who choose media to meet needs.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 2: Media effects. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. McCombs, M. E., & Shaw, D. L. (1972). The agenda-setting function of mass media. Public Opinion Quarterly, 36(2), 176-187. doi.org/10.1086/267990
3. Entman, R. M. (1993). Framing: Toward clarification of a fractured paradigm. Journal of Communication, 43(4), 51-58. doi.org/10.1111/j.1460-2466.1993.tb01304.x
4. Gerbner, G., & Gross, L. (1976). Living with television: The violence profile. Journal of Communication, 26(2), 172-199. doi.org/10.1111/j.1460-2466.1976.tb01397.x
5. Katz, E., Blumler, J. G., & Gurevitch, M. (1973). Uses and gratifications research. Public Opinion Quarterly, 37(4), 509-523. doi.org/10.1086/268109
6. Scheufele, D. A., & Tewksbury, D. (2007). Framing, agenda setting, and priming: The evolution of three media effects models. Journal of Communication, 57(1), 9-20. doi.org/10.1111/j.0021-9916.2007.00326.x

The big picture

The media we use today are the latest layer in a story thousands of years old. Each major new medium did more than add a gadget. It changed who could send messages, how far and fast those messages traveled, and how society organized itself around them. Writing outlasted memory, print reached the masses, broadcasting entered the home, and digital networks put a printing press and a broadcast studio in every pocket. This lesson traces those turning points so that later lessons on each medium sit inside a clear timeline. History explains why media look the way they do now.

Key idea: Media history is a series of revolutions, each of which widened who could communicate and how far, fast, and cheaply messages could travel.

Speech, writing, and print

For most of human existence, communication was oral, bound to memory and to people within earshot. The invention of writing let messages outlast the speaker and travel across distance, but hand-copied texts stayed rare and costly. The decisive break came around 1450, when Johannes Gutenberg combined movable metal type with the press to print books quickly and cheaply. The printing press multiplied texts, spread literacy, and helped fuel the Reformation and the scientific revolution. For the first time, identical messages could reach a mass audience, which is why many historians date mass communication to the print era.

Key idea: The printing press made identical texts cheap and plentiful, creating the first true mass medium and reshaping religion, science, and politics.

The press becomes mass and cheap

Early newspapers were expensive and aimed at merchants and elites. That changed in the 1830s with the penny press, cheap daily papers sold on the street for a single cent and paid for largely by advertising rather than subscriptions. Papers such as the New York Sun reached huge new working-class audiences and helped define news as a daily habit. The penny press established a business model that still shapes media: sell content cheaply or free, gather a large audience, and sell that audience's attention to advertisers. Much of today's online media runs on the same logic.

Key idea: The penny press made news cheap and advertiser-funded, creating the audience-attention business model that still underlies most media.

The electronic century

The twentieth century brought media that moved at the speed of electricity. Film gave the world a powerful new storytelling form and its first celebrity culture. Radio, booming in the 1920s and 1930s, delivered live sound into the home and created national audiences who listened at the same moment. Television combined sound and image and, by the 1950s and 1960s, became the dominant medium of family and public life. Cable later multiplied channels and audiences fragmented into niches. Each of these electronic media entered the home and reorganized daily routines around a schedule of programs.

Key idea: Film, radio, and television carried sound and image into everyday life, building national audiences before cable fragmented them into niches.

The digital turn

The most recent revolution is digital. From the 1990s, the internet linked computers into a global network that could carry every earlier medium as data. The smartphone, arriving after 2007, put that network in people's hands, and by the 2010s a majority of Americans owned one. Social media then let ordinary users publish to the world. As the media scholar Marshall McLuhan foresaw, electronic networks knit distant people into a kind of global village. The digital turn did not erase older media, but it absorbed them, changed how they make money, and made every user a potential publisher.

Key idea: Digital networks and the smartphone absorbed all earlier media into one portable system and turned audiences into publishers.

Common misconceptions

• New media always kill old media. Radio survived television and print survives online; media usually adapt and coexist rather than vanish.
• Mass communication began with the internet. It began with the printing press, which first delivered identical messages to a mass audience.
• The penny press was mainly a technology story. Its lasting importance was a business model funded by advertising, not just cheaper printing.
• History is just trivia for a media course. Each medium's origins explain its present economics, regulation, and culture.

Recap

• Communication passed through oral, writing, print, electronic, and digital revolutions.
• Gutenberg's press created the first mass medium and reshaped society.
• The penny press made news cheap and advertiser-funded, a model still in use.
• Film, radio, and television built national audiences that cable later fragmented.
• The internet and smartphone absorbed earlier media and turned audiences into publishers.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 1: Media and culture. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. Prensky, M. (2001). Digital natives, digital immigrants: Part 1. On the Horizon, 9(5), 1-6. doi.org/10.1108/10748120110424816
3. Bennett, W. L., & Iyengar, S. (2008). A new era of minimal effects? The changing foundations of political communication. Journal of Communication, 58(4), 707-731. doi.org/10.1111/j.1460-2466.2008.00410.x
4. Pew Research Center. (2024). Mobile fact sheet. pewresearch.org
5. Reuters Institute for the Study of Journalism. (2024). Digital news report 2024. University of Oxford. reutersinstitute.politics.ox.ac.uk

The big picture

Books are the oldest mass medium and, in many ways, the most durable. Long before radio or the internet, the printed book carried knowledge, stories, and arguments across centuries and continents. Today books compete with countless screens for attention, yet Americans still read them in print, on e-readers, and increasingly by ear as audiobooks. The publishing industry that produces them is a chain of specialized roles, and it is being reshaped by digital distribution and by one dominant retailer. This lesson explains how books are made, sold, and read, and why the medium remains culturally central.

Key idea: The book is the oldest mass medium, produced by a specialized publishing chain and now reshaped by e-books, audiobooks, and digital retail.

From manuscript to mass market

Before print, books were hand-copied manuscripts, rare and expensive, mostly held by churches and the wealthy. Gutenberg's press changed that after 1450, making books cheaper and steadily more common. Over the following centuries, rising literacy and falling costs turned books into a mass medium. A major twentieth-century shift was the paperback revolution, when inexpensive, pocket-sized paperbacks put literature and popular fiction within reach of ordinary readers. Cheap books sold in drugstores and train stations widened the audience far beyond traditional bookstores and helped make reading a common pastime.

Key idea: Print, rising literacy, and the twentieth-century paperback turned books from rare luxuries into an affordable mass medium.

How publishing works

Publishing is a chain of specialized roles. An author writes a manuscript, often represented by a literary agent who sells it to a publisher. Within the publisher, editors refine the text, designers and production staff prepare it, and marketing and sales teams promote it to booksellers. Distributors and wholesalers move physical copies to stores and libraries. Publishers usually fall into three broad types: trade, meaning general-interest books for the public; educational, meaning textbooks and academic works; and professional or reference. Self-publishing, once dismissed as vanity, has become a major channel as digital tools let authors reach readers directly.

Key idea: Traditional publishing links authors, agents, editors, and distributors, while self-publishing now lets authors bypass much of that chain.

The digital book

Digital technology has reshaped how books are sold and read. E-books, readable on dedicated devices and phones, and audiobooks, which have grown quickly, now sit alongside print. Print remains the most popular format, but a substantial share of Americans read e-books, and many read in more than one format. The most powerful force in the industry is Amazon, which sells a large share of both print and digital books and, through its self-publishing platform, has changed the economics of the business. Its dominance gives one company great influence over prices, discovery, and which titles succeed.

Key idea: E-books and audiobooks now complement print, and Amazon's dominance gives a single retailer heavy influence over the book market.

Print, screens, and reading

Does it matter whether people read on paper or a screen? Research suggests it can. A 2018 meta-analysis by Pablo Delgado and colleagues, and earlier work by Anne Mangen and colleagues, found that readers often comprehend demanding texts somewhat better on paper than on screens, especially under time pressure. Screens invite skimming and bring distractions, while print tends to support slower, deeper reading. The differences are modest and depend on the task, but they matter for education and for how a reading culture adapts to devices. The format of a book is not neutral; it can shape understanding.

Key idea: Studies find modest advantages for comprehending demanding texts on paper over screens, so format can affect how deeply people read.

Common misconceptions

• E-books have replaced print. Print remains the most common format, and many readers use several formats.
• Self-publishing is not real publishing. It is now a major, sometimes lucrative channel that has launched best sellers.
• Publishers mainly just print books. Their core work is selecting, editing, funding, and marketing titles, not operating presses.
• Reading on a screen is identical to reading on paper. Research finds small but real differences in comprehension for demanding texts.

Recap

• The book is the oldest mass medium and remains culturally central.
• Print, literacy, and the paperback turned books into an affordable mass medium.
• Publishing links authors, agents, editors, and distributors; self-publishing bypasses much of the chain.
• E-books and audiobooks complement print, and Amazon dominates book retail.
• Research finds modest comprehension advantages for demanding texts read on paper.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 3: Books. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. Pew Research Center. (2022). Three-in-ten Americans now read e-books. pewresearch.org
3. Delgado, P., Vargas, C., Ackerman, R., & Salmerón, L. (2018). Don't throw away your printed books: A meta-analysis on the effects of reading media on reading comprehension. Educational Research Review, 25, 23-38. doi.org/10.1016/j.edurev.2018.09.003
4. Mangen, A., Walgermo, B. R., & Brønnick, K. (2013). Reading linear texts on paper versus computer screen: Effects on reading comprehension. International Journal of Educational Research, 58, 61-68. doi.org/10.1016/j.ijer.2012.12.002

The big picture

Newspapers built modern journalism. For nearly two centuries they were where most people learned what their government, businesses, and neighbors were doing, and they set the daily agenda for public life. The press is often called the fourth estate, an unofficial branch that watches over the powerful. Yet the newspaper industry is in deep financial trouble, its old business model broken by the internet. Understanding newspapers means grasping both their civic role, which remains vital, and their economic crisis, which threatens local accountability journalism across the country.

Key idea: Newspapers created modern journalism and still anchor accountability reporting, even as the internet has shattered their business model.

The rise of the press

American newspapers grew from small, partisan sheets into a mass medium with the penny press of the 1830s. Competition later drove sensationalism, and in the 1890s the rivalry between publishers Joseph Pulitzer and William Randolph Hearst produced yellow journalism, splashy and often exaggerated reporting that boosted sales. In reaction, the early twentieth century saw the rise of an objectivity norm, the professional ideal that reporters should separate verified facts from opinion and give a fair account. Standardized techniques such as the inverted pyramid, which front-loads the most important facts, and shared wire services spread news efficiently.

Key idea: The press matured from partisan sheets through yellow journalism to a professional objectivity norm supported by shared techniques and wire services.

What the press does

Beyond reporting events, the press performs civic functions. It informs citizens, serves as a watchdog on government and business, provides a forum for debate, and helps set the public agenda. Investigative reporting, from Watergate to countless local exposés, depends on newsrooms with time and resources. These functions explain why a free press is protected by the First Amendment and why the loss of local newspapers worries scholars of democracy. When no reporter attends a city council meeting, misconduct is easier to hide, and studies link the decline of local news to lower civic participation.

Key idea: The press informs, watches power, hosts debate, and helps set the agenda, which is why its decline raises concerns for democratic accountability.

The business in crisis

Newspapers long earned money from two streams: circulation, meaning what readers paid, and advertising, especially lucrative classified ads. The internet dismantled that model. Free sites such as Craigslist erased classified revenue, and digital display advertising flowed to Google and Facebook rather than to news publishers. Pew Research Center data show that United States newspaper circulation and advertising revenue have fallen sharply since the mid-2000s, and newsroom employment has dropped by roughly half. The result includes shuttered papers and news deserts, communities with little or no local coverage. Many surviving papers now chase digital subscriptions to replace lost advertising.

Key idea: The loss of classified and display advertising to the internet collapsed newspaper revenue, cutting newsrooms and creating local news deserts.

Common misconceptions

• Objectivity means reporters have no viewpoint. It is a method of verification and fairness, not a claim that journalists lack opinions.
• Newspapers are dying because people stopped caring about news. Demand for news is high; the advertising money moved to platforms.
• The First Amendment guarantees newspapers a profit. It bars government censorship but does not protect any business model.
• News deserts affect only small towns. Suburbs and mid-sized cities have also lost daily coverage.

Recap

• Newspapers created modern journalism and the ideal of a watchdog press.
• The penny press, yellow journalism, and the objectivity norm shaped the profession.
• The press informs, watches power, hosts debate, and helps set the agenda.
• The internet erased classified and display advertising, collapsing the business model.
• Closures have produced news deserts, threatening local accountability.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 4: Newspapers. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. Pew Research Center. (2024). Newspapers fact sheet. pewresearch.org
3. White, D. M. (1950). The "gate keeper": A case study in the selection of news. Journalism Quarterly, 27(4), 383-390. doi.org/10.1177/107769905002700403
4. American Press Institute. (n.d.). Journalism essentials. americanpressinstitute.org
5. Pew Research Center. (2024). Digital news fact sheet. pewresearch.org

The big picture

Magazines occupy a middle ground between the daily newspaper and the permanent book. Published weekly or monthly, printed on glossy paper, and rich with photography and design, magazines have long specialized in depth, style, and targeted audiences. The industry rose on huge general-interest titles, nearly collapsed when television took their mass audience and advertising, and reinvented itself by serving narrow, passionate niches. That reinvention, often called demassification, makes magazines a useful case study in how a medium survives by finding the audiences a broader rival cannot serve well.

Key idea: Magazines thrive by targeting specific audiences, a strategy called demassification that let them survive the loss of the mass audience to television.

The age of the giants

In the first half of the twentieth century, a handful of general-interest magazines commanded enormous national audiences. Titles such as the Saturday Evening Post, Life, and Look reached millions of households and pioneered photojournalism, telling stories through powerful images. Advertisers paid well to reach these broad audiences. The magazine was, for a time, the closest thing to a national mass medium that print offered, a shared cultural experience delivered to the living room each week or month.

Key idea: General-interest magazines like Life and the Saturday Evening Post once reached mass national audiences and pioneered photojournalism.

Television and demassification

Television broke the general-interest magazine. By the 1950s and 1960s, advertisers who wanted a mass audience could buy television instead, and it offered sound and motion. Deprived of that advertising, several giant magazines folded. The survivors changed strategy. Rather than chasing everyone, magazines began targeting specific interests and demographics, from computing to cooking to fitness to fashion. This demassification let a magazine promise advertisers a precise, engaged audience, something television's broad reach could not match. Specialization became the industry's core strength and remains so today.

Key idea: When television captured the mass audience, magazines survived by demassifying, targeting narrow interest groups that advertisers valued.

The magazine business

Magazines earn revenue from two sources: circulation, meaning subscriptions and newsstand sales, and advertising. Because advertisers pay to reach a defined readership, a magazine's audience data is central to its value. Some trade and industry magazines even use controlled circulation, sent free to qualified readers so the publisher can guarantee advertisers a specific professional audience. The digital era has pressured this model, as web and social platforms compete for both readers and advertising dollars. Many magazines now run websites, newsletters, and events, and some have dropped print entirely for digital-only publishing.

Key idea: Magazines live on circulation and targeted advertising, a model now pressured by digital competition that has pushed many titles toward digital-only publishing.

Common misconceptions

• Magazines are just long newspapers. They differ in schedule, depth, design, and their focus on targeted rather than general audiences.
• Demassification weakened magazines. Targeting niches is precisely what saved the industry after television.
• Only readers pay for magazines. Advertising is a major revenue source, and some magazines are sent free to targeted readers.
• Print magazines have all disappeared. Many survive in print, while others have shifted to digital-only or hybrid models.

Recap

• Magazines specialize in depth, design, and targeted audiences.
• General-interest giants once reached mass audiences and pioneered photojournalism.
• Television captured the mass audience and advertising, folding several giants.
• Magazines survived through demassification, targeting narrow niches.
• The business runs on circulation and targeted advertising, now pressured by digital.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 5: Magazines. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. Ruggiero, T. E. (2000). Uses and gratifications theory in the 21st century. Mass Communication and Society, 3(1), 3-37. doi.org/10.1207/S15327825MCS0301_02
3. University of Minnesota Libraries Publishing. (2016). Chapter 13: Economics of mass media. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
4. Nieman Lab. (n.d.). Nieman Journalism Lab. Harvard University. niemanlab.org

The big picture

The recorded music industry sells something intangible: captured sound. From the phonograph to the smartphone, it has survived by repeatedly changing the format in which sound is stored and sold. Each format, the record, the cassette, the compact disc, the download, and the stream, rewrote the industry's economics and its relationship with listeners. Few media have been disrupted as violently or as often. This lesson traces how recorded music is made and sold, how digital technology nearly destroyed the business, and how streaming rebuilt it on a new financial model.

Key idea: The recorded music industry sells captured sound and has been remade again and again by changes in format, most recently by streaming.

Capturing sound

Recorded music began in the late 1800s with Thomas Edison's phonograph, which captured and replayed sound for the first time. Over the twentieth century, the medium moved from fragile discs to vinyl records, then to portable cassette tapes, and then to the compact disc, a digital format that delivered clear sound and drove huge profits in the 1990s. Throughout, the industry concentrated into a few large record labels that discovered artists, financed recordings, and controlled distribution. Radio played a central role, promoting songs for free and shaping which records became hits.

Key idea: From the phonograph through vinyl, cassette, and the CD, a few major labels controlled recording and distribution, with radio as the key promotional partner.

Digital disruption

The compact disc's digital sound carried a hidden danger for the industry: digital files can be copied perfectly and shared instantly. In 1999 the file-sharing service Napster let users trade MP3 files for free, and music piracy exploded. Industry revenue fell sharply for a decade as listeners stopped buying CDs. Apple's iTunes Store, launched in 2003, offered a legal alternative by selling songs individually for ninety-nine cents, unbundling the album. But paid downloads only slowed the decline. The industry needed a model that made listening easier and cheaper than piracy.

Key idea: Perfect digital copying and Napster's file sharing caused years of falling revenue, only partly offset by paid downloads such as iTunes.

The streaming era

Streaming provided that model. Services such as Spotify and Apple Music let listeners play almost any song on demand for a monthly subscription or in exchange for ads. Instead of owning music, users rent access to nearly all of it. According to the Recording Industry Association of America and the international body IFPI, streaming now provides the large majority of recorded-music revenue, and total revenue has grown again after its long slump. The model is contested: streaming pays rights holders only a small fraction of a cent per play, so many artists argue the economics favor platforms and labels over musicians.

Key idea: Streaming rebuilt music revenue by renting on-demand access, though its tiny per-play payments spark disputes over how little artists earn.

Common misconceptions

• The music industry never recovered from piracy. Streaming has returned the industry to growth after years of decline.
• Streaming pays artists well per play. Each stream pays only a small fraction of a cent, so income depends on huge play counts.
• People still mostly buy music they own. Most listeners now rent access through streaming rather than owning files or discs.
• Radio became irrelevant to music. Radio and curated playlists still shape which songs become hits.

Recap

• Recorded music sells captured sound and is defined by its storage format.
• A few major labels long controlled recording, distribution, and promotion with radio.
• Napster and perfect digital copying caused years of falling revenue.
• iTunes unbundled the album, but streaming rebuilt the business.
• Streaming dominates revenue yet pays only fractions of a cent per play.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 6: Music. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. Recording Industry Association of America. (n.d.). U.S. sales database. riaa.com
3. International Federation of the Phonographic Industry. (n.d.). IFPI: Representing the recording industry worldwide. ifpi.org
4. University of Minnesota Libraries Publishing. (2016). Chapter 13: Economics of mass media. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu

The big picture

Radio was the first electronic mass medium to enter the home, and it did something no earlier medium could: it delivered live sound to millions at the same instant. In its golden age, families gathered around the radio for drama, comedy, news, and a president's voice. Television later took that audience and those programs, and radio might have died. Instead it reinvented itself around recorded music and local personalities, and it remains one of the most widely used media in the country. This lesson traces radio's rise, reinvention, and digital future.

Key idea: Radio was the first medium to bring live sound into the home, and it survived television by reinventing itself around music and local voices.

The golden age

Commercial broadcasting began in 1920, when station KDKA in Pittsburgh aired election returns. Through the 1930s and 1940s, radio's golden age, national networks such as NBC and CBS broadcast dramas, comedies, variety shows, and news to huge audiences. Radio created the first truly national simultaneous audience, and politicians grasped its power. President Franklin Roosevelt's fireside chats spoke directly to citizens in their living rooms. Because the airwaves are a limited public resource, the government licensed stations and required them to serve the public interest, establishing a regulatory tradition that still shapes broadcasting.

Key idea: In its golden age, network radio delivered national programming and political speech, under a licensing system treating the airwaves as a public resource.

Reinvention after television

When television arrived in the 1950s, it took radio's programs, its stars, and much of its audience and advertising. Radio survived by changing what it offered. Rather than national dramas, stations turned to recorded music, hosted by local disc jockeys, and organized themselves into formats, consistent styles such as Top 40, country, or talk aimed at specific audiences. The Top 40 format, built on repeating the most popular songs, made radio the primary way listeners discovered new music for decades. Local personalities and targeted formats gave radio a niche that television could not fill.

Key idea: After television took its programs, radio reinvented itself around recorded music, local disc jockeys, and targeted formats like Top 40.

Radio today

Radio remains remarkably durable. Traditional AM and FM broadcasting still reaches most Americans each week, especially in cars. But the medium now competes with, and increasingly blends into, digital audio. Satellite radio offers subscription channels, internet streaming carries stations worldwide, and on-demand podcasting has revived long-form audio storytelling and talk. Pew Research Center data show that podcast listening has grown rapidly, particularly among younger audiences, and that many people now get news from audio. Radio's future looks less like a single broadcast tower and more like a broad, on-demand audio landscape.

Key idea: Broadcast radio still reaches most Americans weekly, but it now competes and merges with satellite, streaming, and fast-growing podcasting.

Common misconceptions

• Television killed radio. Radio survived by shifting to music, local hosts, and targeted formats.
• Radio is only for older listeners. Podcasting and streaming audio are popular with younger audiences.
• Anyone can broadcast on any frequency. The airwaves are licensed and regulated as a limited public resource.
• Podcasts and radio are unrelated. Podcasting extends radio's audio storytelling into an on-demand form.

Recap

• Radio was the first medium to bring live sound into the home.
• Its golden age built national audiences and powerful political speech.
• Licensing treats the airwaves as a limited public resource.
• Radio survived television by adopting music, disc jockeys, and formats.
• Today it blends broadcast with satellite, streaming, and podcasting.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 7: Radio. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. Encyclopaedia Britannica. (n.d.). Radio. britannica.com
3. Pew Research Center. (2024). Audio and podcasting fact sheet. pewresearch.org
4. Ruggiero, T. E. (2000). Uses and gratifications theory in the 21st century. Mass Communication and Society, 3(1), 3-37. doi.org/10.1207/S15327825MCS0301_02

The big picture

Film was the first medium to tell stories with moving images, and for more than a century it has been both a mass art form and a global industry. A single movie can cost hundreds of millions of dollars, employ thousands of people, and reach audiences on every continent. Hollywood built a factory system to manufacture that magic, learned to sell stars as much as stories, and repeatedly adapted to new technology, from sound to streaming. This lesson traces how the film industry works, how it grew, and how on-demand streaming is remaking the way movies reach us.

Key idea: Film is both a mass art and a costly global industry, built by Hollywood's studio system and now reshaped by streaming.

The birth of an industry

Motion pictures emerged in the 1890s from the work of inventors including Thomas Edison and the Lumière brothers, who projected short films to paying audiences. Early silent films crossed language barriers easily and drew mass audiences to theaters. By the 1920s, the industry had concentrated in Hollywood, where a few large studios controlled production, distribution, and even the theaters, an arrangement called the studio system. The studios also built the star system, promoting actors as glamorous celebrities to sell tickets. The arrival of synchronized sound in 1927, with The Jazz Singer, ended the silent era and transformed the art.

Key idea: Film grew from 1890s inventions into Hollywood's studio system, which controlled production and built the star system, before sound arrived in 1927.

Regulation, art, and blockbusters

Film's influence prompted efforts to control its content. From the 1930s the industry enforced the Hays Code, a set of self-imposed moral rules, which was replaced in 1968 by the voluntary MPAA ratings system that survives today. Meanwhile the business changed shape. A 1948 antitrust ruling forced studios to sell their theaters, weakening the old system. From the mid-1970s, films such as Jaws and Star Wars created the modern blockbuster, the expensive, heavily marketed event movie designed to earn enormous sums quickly. Blockbusters, sequels, and franchises still dominate studio strategy.

Key idea: Self-regulation moved from the Hays Code to MPAA ratings, while antitrust and the rise of the blockbuster reshaped how studios make money.

Screen influence and the streaming turn

Because film shows vivid models of behavior, scholars have long debated its influence, and social cognitive theory holds that audiences can learn attitudes and behaviors by observing screen characters. That debate continues over depictions of violence and of social groups. The industry's latest upheaval is streaming. Services such as Netflix began producing their own films and releasing them online, sometimes skipping theaters entirely. The COVID-19 pandemic accelerated the shift, and the theatrical window, the exclusive period a film plays in cinemas, has shrunk. Studios now balance box-office releases with streaming, according to Motion Picture Association industry data.

Key idea: Debates over film's influence continue, while streaming and shrinking theatrical windows are remaking how movies are released and monetized.

Common misconceptions

• Movies have always had sound. The silent era lasted decades; synchronized sound arrived in 1927.
• The MPAA ratings are a government censorship system. They are a voluntary industry system, not a law.
• Studios still own the theaters. A 1948 antitrust ruling forced them to sell their theater chains.
• Streaming has ended theatrical film. Theaters continue, but the exclusive theatrical window has shrunk.

Recap

• Film was the first medium to tell stories with moving images.
• Hollywood's studio system controlled production and built the star system.
• Sound arrived in 1927; self-regulation moved from the Hays Code to MPAA ratings.
• Blockbusters, sequels, and franchises dominate studio strategy.
• Streaming and shrinking theatrical windows are remaking film distribution.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 8: Movies. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. Motion Picture Association. (n.d.). Motion Picture Association. motionpictures.org
3. Bandura, A. (2001). Social cognitive theory of mass communication. Media Psychology, 3(3), 265-299. doi.org/10.1207/S1532785XMEP0303_03
4. University of Minnesota Libraries Publishing. (2016). Chapter 13: Economics of mass media. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu

The big picture

For half a century, television was the center of American media life. Most homes had one, families organized evenings around its schedule, and its biggest broadcasts united tens of millions of people at a single moment. Television shaped politics, sold products, and told the era's defining stories. Now the medium is being pulled apart and reassembled by streaming, which replaces the fixed schedule with on-demand viewing. This lesson traces television from the network era through cable to streaming, and explains how the way we watch has changed what television is.

Key idea: Television was the dominant mass medium for decades, and streaming is now transforming it from a scheduled broadcast into an on-demand service.

The network era

Television spread rapidly in the 1950s, and for decades three broadcast networks, ABC, CBS, and NBC, dominated what Americans watched. In this network era, a handful of programs drew mass audiences, and advertisers reached the whole country through a few channels. Critics worried about the medium's quality; in 1961 the chairman of the Federal Communications Commission famously called television a vast wasteland. Yet television also delivered shared national experiences, from moon landings to political conventions, and became the public's main source of news, measured by Nielsen ratings that set advertising prices.

Key idea: In the network era, three broadcast networks drew mass audiences and set the national conversation, with Nielsen ratings pricing the advertising.

Cable and cultivation

Cable television, spreading from the 1970s and 1980s, shattered the three-network world. It delivered dozens and then hundreds of channels, each targeting a niche, from sports to news to music. Cable made possible the twenty-four-hour news cycle and, later, the prestige dramas of quality television. Heavy television viewing also drew research attention. George Gerbner's cultivation theory argued that because television overrepresents violence, heavy viewers come to see the world as more dangerous than it is. Gerbner also described mainstreaming, a pull of diverse heavy viewers toward a common, television-shaped view of reality.

Key idea: Cable multiplied channels and niches, while cultivation research argued that heavy viewing shapes viewers' sense of reality.

Reality, streaming, and cord-cutting

Two later shifts reshaped television. First, inexpensive reality television boomed around 2000, and research has treated it as a model for the self-presentation now common on social media. Second, streaming services such as Netflix moved television online, letting viewers watch anything at any time and binge whole seasons. Many households began cord-cutting, canceling cable for streaming. Nielsen data now track streaming's rising share of viewing against traditional television. The result is an on-demand, fragmented landscape with abundant choice, higher combined subscription costs, and few programs that everyone watches at once.

Key idea: Reality TV and then streaming and cord-cutting turned television into an on-demand, fragmented medium with few shared mass audiences.

Common misconceptions

• Streaming is a completely different art from television. It delivers television content on demand; it is a new distribution method, not a new art form.
• Cable and broadcast are the same thing. Broadcast is sent free over the air; cable delivers many channels by wire for a fee.
• Cultivation says one show changes your worldview. It describes gradual effects from heavy, long-term viewing.
• Everyone still watches the same shows. Fragmentation means few programs now gather a true mass audience at once.

Recap

• Three networks dominated the network era, priced by Nielsen ratings.
• Cable multiplied channels, created the news cycle, and enabled quality TV.
• Cultivation research links heavy viewing to an exaggerated fear of the world.
• Reality TV modeled the self-presentation later common on social media.
• Streaming and cord-cutting made television on-demand and fragmented.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 9: Television. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. Nielsen. (n.d.). The gauge: A monthly snapshot of total TV and streaming. nielsen.com
3. Gerbner, G., Gross, L., Morgan, M., & Signorielli, N. (1980). The "mainstreaming" of America: Violence profile no. 11. Journal of Communication, 30(3), 10-29. doi.org/10.1111/j.1460-2466.1980.tb01987.x
4. Stefanone, M. A., Lackaff, D., & Rosen, D. (2010). The relationship between traditional mass media and social media: Reality television as a model for social network site behavior. Journal of Broadcasting & Electronic Media, 54(3), 508-525. doi.org/10.1080/08838151.2010.498851
5. Pew Research Center. (2024). Cable news fact sheet. pewresearch.org

The big picture

The internet is not simply another medium alongside print and broadcast. It is a network that can carry all of them, and it broke the basic rule of mass communication: that only a few organizations could reach the many. Anyone with a connection can now publish to a potential audience of billions. Social media platforms then organized that flood of user content into feeds ranked by algorithms and paid for by advertising. This lesson explains how the internet and social media work as media, how they make money, and what their rise has done to news and public life.

Key idea: The internet let anyone publish to the many, and social media organized that content into algorithmic, advertising-funded feeds.

From ARPANET to the social web

The internet grew from ARPANET, a United States government research network begun in 1969 to link computers. It remained largely academic until Tim Berners-Lee's World Wide Web, introduced around 1990, made information easy to browse through linked pages. Early websites mostly published to readers, much like digital magazines. The shift often called Web 2.0 changed that by making the audience the source of the content. Blogs, wikis, video sharing, and social network sites let ordinary users create the material that others came to see, turning users into producers.

Key idea: The internet moved from a government research network to the Web, and then to Web 2.0, where users supply the content.

What social media are

The scholars danah boyd and Nicole Ellison defined social network sites in 2007 as web services that let people build a public or semi-public profile, list other users they connect with, and view their connections. That definition captures the core: profiles, connections, and a visible network. On top of it, platforms added the feed, an algorithmically ranked stream of posts. The algorithm, not an editor, decides what most users see, usually optimizing for engagement. This makes platforms enormously powerful gatekeepers even though they produce almost none of the content themselves.

Key idea: Social network sites combine profiles, visible connections, and algorithmic feeds, making platforms powerful gatekeepers that create little content.

The platform business

Platforms are free to users because users are not the customers; advertisers are. Platforms collect detailed behavioral data and sell precisely targeted access to attention, a model that made a few companies among the world's most valuable. Their value also rests on network effects, since a service becomes more useful as more people join, which helps the largest platforms stay dominant. The old penny-press logic, gather an audience cheaply and sell its attention, still applies, but with far more precise targeting than any newspaper could offer.

Key idea: Platforms sell targeted attention and behavioral data, and network effects help the biggest services stay dominant.

News, participation, and polarization

Because Pew Research Center finds that large shares of Americans regularly get news on social media, platform design shapes what the public learns. The effects are genuinely mixed. Research by Homero Gil de Zúñiga and colleagues links social media news use to greater social capital, civic engagement, and political participation. Yet W. Lance Bennett and Shanto Iyengar argue that a fragmented, choice-rich environment lets people select information that fits their existing views, weakening the shared agenda that broadcast once created. Both findings can be true: platforms can mobilize people while also sorting them into separate information worlds.

Key idea: Social media can raise civic participation while also enabling selective exposure, so their effects on public life are mixed rather than simply good or bad.

Common misconceptions

• Social media platforms are neutral pipes. Their algorithms rank and select content, making them powerful gatekeepers.
• Platforms are free. Users pay with attention and personal data, which platforms sell to advertisers.
• The internet and the World Wide Web are the same thing. The internet is the network; the Web is one service running on it.
• Social media only makes people passive. Research links social media news use to greater civic participation for some users.

Recap

• The internet carries all earlier media and lets anyone publish to the many.
• It grew from ARPANET to the Web and then to user-generated Web 2.0.
• Social network sites combine profiles, connections, and algorithmic feeds.
• Platforms sell targeted attention and data, protected by network effects.
• Social media raise participation for some while enabling selective exposure.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 11: The internet and social media. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. boyd, d. m., & Ellison, N. B. (2007). Social network sites: Definition, history, and scholarship. Journal of Computer-Mediated Communication, 13(1), 210-230. doi.org/10.1111/j.1083-6101.2007.00393.x
3. Gil de Zúñiga, H., Jung, N., & Valenzuela, S. (2012). Social media use for news and individuals' social capital, civic engagement and political participation. Journal of Computer-Mediated Communication, 17(3), 319-336. doi.org/10.1111/j.1083-6101.2012.01574.x
4. Bennett, W. L., & Iyengar, S. (2008). A new era of minimal effects? The changing foundations of political communication. Journal of Communication, 58(4), 707-731. doi.org/10.1111/j.1460-2466.2008.00410.x
5. Pew Research Center. (2024). Social media fact sheet. pewresearch.org
6. Pew Research Center. (2024). Social media and news fact sheet. pewresearch.org

The big picture

Video games are the youngest mass medium and, by revenue, one of the largest. They differ from every medium before them in one decisive way: they are interactive. A reader, listener, or viewer receives a story, but a player acts inside one and changes what happens. That interactivity makes games a distinctive art form, a huge global industry, and the focus of the most heated media effects debate of the past thirty years. This lesson traces the industry's history, its economics, and what research actually finds about games and behavior.

Key idea: Video games are the youngest mass medium, defined by interactivity, which makes players participants rather than only receivers.

From arcades to everywhere

Video games emerged commercially in the early 1970s, when Atari's Pong made a simple electronic game a public sensation in arcades and then in homes. The young industry grew fast, oversaturated its market with low-quality titles, and collapsed in the video game crash of 1983. Nintendo revived it with tighter quality control and iconic characters, establishing the modern console business. Personal computers, then the internet, then smartphones each widened the audience further. Today the Entertainment Software Association reports that gaming reaches a broad, demographically diverse population, far from the old stereotype of a teenage boy alone in a basement.

Key idea: From arcades through the 1983 crash to consoles, PCs, and phones, gaming grew into a mass medium with a broad, diverse audience.

The business of play

Games are expensive to make and are sold in several ways. Traditional titles sell for a fixed price, while free-to-play games, dominant on mobile, give the game away and earn money from microtransactions, small purchases for cosmetics, upgrades, or extra content. Some monetization has drawn scrutiny, especially loot boxes, randomized paid rewards that critics compare to gambling. Like film, the industry regulates its own content, through the Entertainment Software Rating Board, which assigns age ratings. Competitive play has also become a spectator medium in esports, where large audiences watch others play.

Key idea: Games earn money through fixed prices or free-to-play microtransactions, are self-rated by the ESRB, and now support esports as spectator media.

The violence debate

No media effects question has been argued more fiercely than whether violent games cause aggression. In 2001 Craig Anderson and Brad Bushman published a meta-analysis reporting that violent game play was associated with increases in aggressive behavior, cognition, and arousal, and with decreases in prosocial behavior. Other scholars disputed the size and meaning of these findings, noting small effect sizes and questioning any link to real-world violence.

Isabela Granic and colleagues argued in 2014 that the field had overlooked benefits, including cognitive, motivational, emotional, and social gains from play. The honest summary is that measurable effects exist but are modest and contested, and that games have not been established as a cause of serious violence. Aggression in a laboratory is not the same as violent crime.

Key idea: Research finds modest and contested links between violent games and aggression, no established cause of serious violence, and real benefits from play.

Common misconceptions

• Games are only for children and teenage boys. The gaming audience is broad and demographically diverse.
• Research proves violent games cause real-world violence. Effects are small and contested, and no such causal link is established.
• Games are mere entertainment with no benefits. Research points to cognitive, emotional, and social benefits as well.
• The ESRB is a government censor. It is an industry self-rating body, much like the film ratings system.

Recap

• Games are the youngest mass medium, defined by interactivity.
• The industry grew from arcades, crashed in 1983, and was revived by Nintendo's consoles.
• Free-to-play games and microtransactions now dominate much of the market.
• The ESRB rates games through self-regulation, and esports made play a spectator medium.
• Violence research finds modest, contested effects alongside documented benefits.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 10: Electronic games and entertainment. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. Entertainment Software Association. (n.d.). Entertainment Software Association. theesa.com
3. Anderson, C. A., & Bushman, B. J. (2001). Effects of violent video games on aggressive behavior, aggressive cognition, aggressive affect, physiological arousal, and prosocial behavior: A meta-analytic review of the scientific literature. Psychological Science, 12(5), 353-359. doi.org/10.1111/1467-9280.00366
4. Granic, I., Lobel, A., & Engels, R. C. M. E. (2014). The benefits of playing video games. American Psychologist, 69(1), 66-78. doi.org/10.1037/a0034857

The big picture

Advertising pays for most of the media people consume for free. Broadcast television, radio, most websites, and social platforms exist because advertisers buy access to their audiences. That arrangement has a consequence every student of media must grasp: when the content is free, the audience is usually the product being sold. Advertising is also the most studied form of everyday persuasion, a vast effort to shape attention, memory, and desire. This lesson explains how advertising works, how it funds media, how it is regulated, and why people consistently underestimate its effect on themselves.

Key idea: Advertising funds most free media by selling audience attention, which makes it central to how media are shaped and what they produce.

What advertising does

An advertisement is a paid, identified message intended to persuade. Early advertising simply announced that goods existed. Modern advertising, which grew with industrial mass production in the late 1800s, is more ambitious: it builds brands, associating a product with an identity, feeling, or lifestyle rather than only its function. Advertising agencies emerged as specialists who research audiences, create campaigns, and buy media space. The goal is rarely a single sale. It is to build awareness and preference that pay off over years.

Key idea: Modern advertising builds brands by linking products to identities and feelings, not merely announcing that goods exist.

How advertising funds media

Advertising explains much of the media system's structure. A commercial broadcaster does not sell programs to viewers; it sells viewers to advertisers, and the program is the bait that gathers them. This is why ratings and audience data matter so much, and why media chase the demographics advertisers want. It also creates pressure: content that attracts a desirable audience gets made, while content that does not may be dropped regardless of quality. Understanding this exchange explains many decisions that otherwise look inexplicable, from cancelled shows to clickbait headlines.

Key idea: Commercial media sell audiences to advertisers rather than content to audiences, which shapes what gets produced and what gets cancelled.

Persuasion and its limits

Advertisers use a familiar toolkit: repetition, emotional appeals, humor, celebrity endorsement, and association with attractive images. Repetition works partly through the mere exposure effect, demonstrated by Robert Zajonc in 1968, in which simply encountering something repeatedly tends to increase liking for it. Digital advertising adds precision, using behavioral data to target narrow audiences, and it blends into content through native advertising and influencer marketing that can resemble ordinary posts. Notably, people tend to believe advertising works on others more than on themselves, a pattern W. Phillips Davison named the third-person effect in 1983.

Key idea: Repetition, emotion, and targeting drive advertising, yet people systematically believe ads influence others more than themselves.

Regulation

Advertising is commercial speech and receives less First Amendment protection than political or artistic speech, so it can be regulated for truthfulness. In the United States the Federal Trade Commission enforces truth-in-advertising rules: claims must be truthful, not misleading, and substantiated by evidence. The FTC also issues endorsement guides requiring that paid endorsements and material connections be clearly disclosed, which is why sponsored posts must be labeled. Deceptive advertising can bring enforcement action. The law draws a line between persuasion, which is allowed, and deception, which is not.

Key idea: Advertising is commercial speech that must be truthful and substantiated, with the FTC requiring disclosure of paid endorsements.

Common misconceptions

• Advertising just informs people about products. Modern advertising mainly builds brands and shapes feelings and identity.
• Free media are free. Audiences pay with attention and data, which is exactly what the advertiser buys.
• Advertising cannot be regulated because of free speech. Commercial speech gets less protection and must be truthful and substantiated.
• Ads work on other people, not on me. The third-person effect shows this belief is itself a predictable bias.

Recap

• Advertising is paid, identified persuasion that funds most free media.
• Modern advertising builds brands rather than merely announcing products.
• Commercial media sell audiences to advertisers, shaping what gets produced.
• Repetition and mere exposure, emotion, and targeting drive persuasion.
• The FTC requires truthful, substantiated claims and disclosure of endorsements.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 12: Advertising and public relations. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. Federal Trade Commission. (n.d.). Advertising and marketing. ftc.gov
3. Federal Trade Commission. (n.d.). The FTC's endorsement guides: What people are asking. ftc.gov
4. Zajonc, R. B. (1968). Attitudinal effects of mere exposure. Journal of Personality and Social Psychology, 9(2, Pt. 2), 1-27. doi.org/10.1037/h0025848
5. Davison, W. P. (1983). The third-person effect in communication. Public Opinion Quarterly, 47(1), 1-15. doi.org/10.1086/268763

The big picture

Public relations is the least visible of the major media industries and, for that reason, one of the most powerful. When a company announces a product, a university responds to a scandal, or a government agency explains a policy, public relations professionals shape the message. PR does not buy space the way advertising does. It works to earn favorable coverage and to manage an organization's reputation with the publics it depends on. Because so much of what appears as news begins in a PR office, understanding public relations is essential to reading media critically.

Key idea: Public relations manages reputation and relationships by earning coverage rather than buying it, quietly shaping much of what becomes news.

What PR is, and is not

Public relations is the management of communication between an organization and the publics that affect its success, including customers, employees, investors, regulators, and communities. The clearest contrast is with advertising. Advertising is paid media: the organization buys the space and controls the message exactly. Public relations aims at earned media, coverage a journalist chooses to run, which the organization cannot control but which audiences often trust more precisely because it did not come from an ad. That trade of control for credibility defines the field.

Key idea: Advertising buys controlled paid media, while public relations seeks earned media that is less controllable but more credible.

A short history

Modern PR emerged in the early twentieth century. Ivy Lee urged corporations to respond to the press honestly and issued some of the first press releases, arguing that openness served business interests. Edward Bernays, a nephew of Sigmund Freud, went further, treating public opinion as something that could be engineered through symbols and third-party endorsement. Bernays' work, which he himself connected to propaganda, remains both a foundation of the field and a source of its reputation for spin. The tension between honest information and manipulation has shadowed public relations ever since.

Key idea: PR grew from Ivy Lee's openness and Bernays' engineering of opinion, leaving a lasting tension between honest information and spin.

What PR professionals do

The work spans several functions. Media relations builds contacts with journalists and supplies press releases, data, and interviews. Because newsrooms are stretched thin, these information subsidies, ready-made material that lowers a reporter's cost of covering a story, are frequently used, which gives PR real influence over the news agenda and over how stories are framed. Other functions include internal communication with employees, public affairs dealing with government, and crisis communication. In a crisis, standard advice is to respond quickly, tell the truth, and act visibly, a lesson often drawn from the rapid product recall during the 1982 Tylenol poisonings.

Key idea: PR supplies information subsidies that shape news coverage and framing, and it manages internal, government, and crisis communication.

Ethics

Because PR is persuasion on behalf of a client, ethics matter. The Public Relations Society of America's Code of Ethics stresses honesty, accuracy, disclosure of information, and loyalty to clients balanced against the public interest. Practices that hide the source of a message violate those principles. Astroturfing, for example, manufactures a fake grassroots movement that appears spontaneous but is funded by an interested party. Undisclosed payments to influencers raise the same problem. The ethical line falls at transparency: advocating for a client is legitimate, while concealing who is actually speaking is not.

Key idea: PR ethics center on transparency, with the PRSA code requiring honesty and disclosure and condemning hidden sponsorship such as astroturfing.

Common misconceptions

• PR and advertising are the same thing. Advertising buys controlled space; PR seeks earned, less controllable coverage.
• PR is just spin and lying. Codes of ethics require accuracy and disclosure, though the field's history includes manipulation.
• News is independent of PR. Much coverage begins with press releases and other information subsidies.
• Crisis PR means saying as little as possible. Standard practice is to respond quickly, tell the truth, and act visibly.

Recap

• PR manages reputation and relationships with an organization's publics.
• It seeks earned media, trading control for credibility, unlike paid advertising.
• Ivy Lee and Edward Bernays founded the modern field and its tensions.
• Information subsidies give PR real influence over news content and framing.
• The PRSA code centers on honesty and disclosure; astroturfing violates it.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 12: Advertising and public relations. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. Public Relations Society of America. (n.d.). All about PR. prsa.org
3. Public Relations Society of America. (n.d.). PRSA code of ethics. prsa.org
4. Entman, R. M. (1993). Framing: Toward clarification of a fractured paradigm. Journal of Communication, 43(4), 51-58. doi.org/10.1111/j.1460-2466.1993.tb01304.x
5. University of Minnesota Libraries Publishing. (2016). Chapter 14: Ethics of mass media. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu

The big picture

American media operate under one of the most speech-protective legal systems in the world. The First Amendment's command that Congress shall make no law abridging the freedom of speech or of the press has been read by the Supreme Court to bar most government control of what media may publish. But the protection is not absolute. Courts have carved out categories, including defamation, obscenity, and incitement, that receive little or no protection, and different media have historically received different levels of freedom. This lesson maps the legal boundaries within which American media work.

Key idea: The First Amendment bars most government control of the press, but courts have defined categories such as defamation, obscenity, and incitement that fall outside full protection.

Prior restraint

The core protection is against prior restraint, government censorship that stops speech before it is published. Courts treat prior restraint as the gravest threat to a free press and presume it unconstitutional. In Near v. Minnesota (1931) the Court struck down a law letting officials shut down a scandal sheet. The principle was tested most famously in New York Times Co. v. United States (1971), the Pentagon Papers case, when the government tried to block publication of a classified history of the Vietnam War. The Court refused, holding that the government had not met the heavy burden required.

Key idea: Prior restraint, stopping publication before it happens, is presumed unconstitutional, as the Pentagon Papers case confirmed.

Defamation and the actual malice rule

Publishing falsehoods that damage reputation is defamation, called libel when written. To protect robust debate, the Supreme Court sharply limited defamation suits by public officials in New York Times Co. v. Sullivan (1964). It held that a public official must prove actual malice, meaning the publisher knew the statement was false or acted with reckless disregard for whether it was true. Later cases extended that demanding standard to public figures, while private individuals face a lower bar. The rule means honest mistakes about public officials are generally protected, giving the press breathing room to cover the powerful.

Key idea: Sullivan requires public officials and public figures to prove actual malice, protecting honest errors and giving the press room to scrutinize power.

Speech outside full protection

Some categories fall outside full protection, but each is narrower than people assume. Obscenity is unprotected, and Miller v. California (1973) set the governing three-part test: whether the average person, applying contemporary community standards, would find the work appeals to the prurient interest; whether it depicts sexual conduct in a patently offensive way; and whether it lacks serious literary, artistic, political, or scientific value.

Incitement is likewise narrow. Under Brandenburg v. Ohio (1969), speech may be punished as incitement only if it is directed to producing imminent lawless action and is likely to produce it. Merely advocating illegal conduct in the abstract remains protected. Commercial speech, meaning advertising, receives an intermediate level of protection and may be regulated for truthfulness.

Key idea: Obscenity and incitement are unprotected but narrowly defined by the Miller and Brandenburg tests, and commercial speech gets intermediate protection.

Different media, different rules

The level of protection has historically depended on the medium. Broadcasting receives the least, because the airwaves are scarce and licensed. Red Lion Broadcasting Co. v. FCC (1969) upheld broadcast regulation on that scarcity rationale, and FCC v. Pacifica Foundation (1978) allowed limits on indecent broadcasts, which is why indecency, though protected elsewhere, can be restricted on the air. Print receives nearly full protection.

The internet received the highest protection in Reno v. ACLU (1997), where the Court struck down parts of a law restricting online indecency and refused to treat the internet like broadcasting. Students keep some rights too: Tinker v. Des Moines (1969) held they do not shed their speech rights at the schoolhouse gate. Copyright separately limits reuse, though the fair use doctrine permits limited use for purposes such as criticism, comment, and news reporting.

Key idea: Broadcasting gets the least protection under the scarcity rationale, print nearly full protection, and the internet the most after Reno v. ACLU.

Common misconceptions

• The First Amendment protects all speech. Defamation, obscenity, and incitement receive little or no protection.
• Anything offensive is obscene. Obscenity is a narrow legal category defined by the Miller test; merely indecent speech is protected.
• Any false story can be won in a libel suit. Public officials and public figures must prove actual malice, not merely error.
• All media receive identical protection. Broadcasting has historically received less protection than print or the internet.

Recap

• The First Amendment bars most government control of media, but not all.
• Prior restraint is presumed unconstitutional, as the Pentagon Papers case showed.
• Sullivan requires public officials to prove actual malice in libel suits.
• Miller defines obscenity and Brandenburg narrowly defines incitement.
• Broadcasting gets less protection than print, while the internet gets the most.

Sources

1. Legal Information Institute. (n.d.). First Amendment. Cornell Law School. law.cornell.edu
2. Oyez. (n.d.). New York Times Company v. Sullivan, 376 U.S. 254 (1964). oyez.org
3. Oyez. (n.d.). New York Times Company v. United States, 403 U.S. 713 (1971). oyez.org
4. Oyez. (n.d.). Miller v. California, 413 U.S. 15 (1973). oyez.org
5. Oyez. (n.d.). Brandenburg v. Ohio, 395 U.S. 444 (1969). oyez.org
6. University of Minnesota Libraries Publishing. (2016). Chapter 15: Media and government. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu

The big picture

Law tells journalists what they may publish; ethics tell them what they should. The two often diverge. It is perfectly legal to publish the name of a crime victim or a grieving family's photograph, yet many newsrooms will not. Because the First Amendment leaves American media largely unregulated, the profession governs itself through voluntary codes and newsroom judgment. This lesson examines the main ethical principles of journalism, the recurring dilemmas they address, and why self-regulation carries real weight even without legal force.

Key idea: Law sets the outer limits of publication, while ethics guide the choices within them, and American journalism relies on voluntary self-regulation.

The SPJ Code

The most widely cited standard in American journalism is the Society of Professional Journalists Code of Ethics, a voluntary guide organized around four principles. Seek truth and report it calls for accuracy, verification, and diligence. Minimize harm asks journalists to treat sources and subjects as human beings deserving respect, balancing the public's need to know against potential harm. Act independently demands freedom from conflicts of interest and from any obligation other than the public's right to know. Be accountable and transparent requires explaining decisions and correcting errors promptly. The code is deliberately advisory, not enforceable.

Key idea: The SPJ Code rests on four voluntary principles: seek truth and report it, minimize harm, act independently, and be accountable and transparent.

Recurring dilemmas

Ethical conflicts usually arise when principles collide. Anonymous sources can expose wrongdoing that would otherwise stay hidden, but they shift the burden of trust from a named person to the outlet, so codes urge using them only when necessary and explaining why. Privacy conflicts with newsworthiness when reporting on private grief or on a public figure's private life. Deception, such as going undercover, may reveal serious wrongdoing but violates the honesty journalists demand of others, so it is reserved for stories of great public importance where no other method exists.

Key idea: Ethical dilemmas arise when principles collide, as with anonymous sources, privacy versus newsworthiness, and deception in reporting.

Independence and its threats

Acting independently means avoiding anything that could compromise integrity or create even the appearance of a conflict. Accepting gifts, travel, or favors from sources, holding stock in a company one covers, or campaigning for a candidate all threaten independence. So does checkbook journalism, paying sources for interviews, because payment gives a source a financial incentive to embellish. Advertisers create a subtler pressure, since they fund the outlet, which is why credible newsrooms insist on a wall between the business side and editorial decisions.

Key idea: Independence requires avoiding gifts, financial interests, paid sources, and advertiser pressure, and even the appearance of conflict.

The gravest breaches and accountability

Two failures end careers because they attack the foundation of journalism: fabrication, inventing facts or sources, and plagiarism, presenting another's work as one's own. Both destroy the credibility on which the entire enterprise depends, and high-profile scandals at major newspapers have produced resignations and lasting institutional damage. Related problems include manipulating photographs to misrepresent events. Accountability is the answer the profession offers: correcting mistakes promptly and visibly, explaining decisions, and inviting criticism. Broadcast journalists follow a parallel code from the Radio Television Digital News Association.

Key idea: Fabrication and plagiarism are the gravest breaches because they destroy credibility, and the profession answers with prompt, visible correction and transparency.

Common misconceptions

• If it is legal, it is ethical. Law sets the outer limits; ethics govern the many choices within them.
• The SPJ Code is enforceable law. It is a voluntary guide carrying no legal penalty.
• Objectivity means never making judgments. Journalists judge constantly; ethics steer those judgments toward verification and fairness.
• Minimizing harm means avoiding tough stories. It means weighing harm against the public's need to know, not refusing to report.

Recap

• Law sets limits, while ethics guide the choices within them.
• The SPJ Code's four principles are seek truth, minimize harm, act independently, and be accountable.
• Dilemmas arise from colliding principles: anonymity, privacy, and deception.
• Independence requires avoiding conflicts, paid sources, and advertiser pressure.
• Fabrication and plagiarism destroy credibility; accountability means prompt correction.

Sources

1. Society of Professional Journalists. (n.d.). SPJ code of ethics. spj.org
2. Radio Television Digital News Association. (n.d.). RTDNA code of ethics. rtdna.org
3. University of Minnesota Libraries Publishing. (2016). Chapter 14: Ethics of mass media. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
4. American Press Institute. (n.d.). Journalism essentials. americanpressinstitute.org
5. Legal Information Institute. (n.d.). Defamation. Cornell Law School. law.cornell.edu

The big picture

This course ends where it should: with the skills to handle the media environment it has described. Media literacy is the ability to access, analyze, evaluate, and create media messages. It matters more now than in the network era because the gatekeepers have weakened. When three networks and a local paper filtered the news, most verification happened before publication. Today anything can reach anyone instantly, and much of the filtering has shifted to the audience. This lesson covers how false information spreads, how to verify what you see, and what may sustain journalism in the years ahead.

Key idea: Media literacy is the ability to access, analyze, evaluate, and create media, and it matters more now that filtering has shifted to the audience.

Misinformation and how it spreads

It is useful to distinguish misinformation, false information spread without intent to deceive, from disinformation, falsehood spread deliberately. Both travel well. In a large study of Twitter published in Science in 2018, Soroush Vosoughi, Deb Roy, and Sinan Aral found that false news spread farther, faster, deeper, and more broadly than the truth, and that the gap was largest for political news. Two findings stand out. The spread was driven mainly by humans rather than bots, and false stories were measurably more novel, which appears to make people more likely to share them.

Key idea: Research finds false news spreads farther and faster than truth, driven mainly by humans sharing novel, surprising claims.

Verification you can do

Media literacy is practical. Fact-checkers rely on lateral reading, leaving a page to see what independent sources say about it rather than judging it by its own design and confidence. Other habits help: identify the original source of a claim and follow it upstream; check the date, since old stories often recirculate as new; use reverse image search, because real images are frequently reused in false contexts; and distinguish reporting from opinion, advertising, and native content. The core questions are always the same: who is telling me this, how do they know, and what might they want.

Key idea: Practical verification means reading laterally, tracing claims upstream, checking dates and images, and asking who benefits from a message.

The future of news

The economics remain the hardest problem. Advertising will not return to news publishers at its old scale, so outlets are testing other models: digital subscriptions and memberships, nonprofit and philanthropic funding, and public media. Reuters Institute research consistently finds two worrying trends alongside these efforts. News avoidance, in which people deliberately turn away from news they find depressing or overwhelming, has grown, and trust in news is low or falling in many countries. Artificial intelligence adds both efficiency and the risk of synthetic content produced at scale.

What will not change is the underlying need. Algorithms can rank and summarize, but someone must still go to the meeting, read the documents, ask the uncomfortable question, and verify the answer. That work is what this whole system ultimately depends on.

Key idea: The future of news depends on new funding models amid news avoidance and low trust, but the need for verified original reporting remains.

Common misconceptions

• Misinformation and disinformation are the same. Disinformation is deliberate, while misinformation spreads without intent to deceive.
• Bots are the main reason false news spreads. Research found that human sharing, not bots, drove most of the spread.
• Media literacy means distrusting everything. It means evaluating evidence and sources, not blanket cynicism.
• If a story is shared widely, it is probably true. False stories often spread faster precisely because they are more novel.

Recap

• Media literacy is accessing, analyzing, evaluating, and creating media messages.
• Disinformation is deliberate; misinformation is not.
• Vosoughi and colleagues found false news spreads farther and faster, driven by humans.
• Lateral reading, tracing sources, and checking dates and images are practical tools.
• News faces avoidance and low trust while new funding models are tested.

Sources

1. University of Minnesota Libraries Publishing. (2016). Chapter 16: The future of mass media. In Understanding media and culture: An introduction to mass communication. open.lib.umn.edu
2. Vosoughi, S., Roy, D., & Aral, S. (2018). The spread of true and false news online. Science, 359(6380), 1146-1151. doi.org/10.1126/science.aap9559
3. Reuters Institute for the Study of Journalism. (2024). Digital news report 2024: Executive summary. University of Oxford. reutersinstitute.politics.ox.ac.uk
4. Pew Research Center. (2024). News platform fact sheet. pewresearch.org
5. News Literacy Project. (n.d.). News Literacy Project. newslit.org
6. Nieman Lab. (n.d.). Nieman Journalism Lab. Harvard University. niemanlab.org