Internet culture is the shared humor, slang, formats and habits that online communities invent and pass around. Since 2000, the share of U.S. adults online has risen from 52% to 97%, so these customs now reach nearly everyone.
This guide maps the main parts of that culture: memes, platforms, formats and language. Each section points to a deeper page for readers who want the full history of a single piece.
How big is internet culture today?
The Pew Research Center reports that 97% of U.S. adults say they use the internet in 2026. In 2000 the figure was 52%, and it passed 70% in 2006 (71%), 90% in 2019 and 95% in 2023. A culture that once belonged to hobbyists on forums is now a general public culture.
The age gap shows how fast the change moved. In 2000, only 14% of U.S. adults aged 65 and older used the internet, against 70% of adults aged 18 to 29. By the time the older group caught up, the younger group had spent two decades building the jokes, vocabulary and etiquette that newcomers now have to decode.
That decoding problem is the reason this guide exists. A reply made of a reaction image, a phrase quoted from an old forum post, or a word that has shifted meaning can be unreadable to an outsider. Internet culture works like any local culture: it has insiders, outsiders, rules nobody wrote down, and fashions that expire.
Three things set it apart from older popular culture. Speed is the first: a joke can circulate worldwide within days. Remixing is the second, because almost every format is built to be edited by the next person. Anonymity and pseudonyms are the third, which lets communities build identities around handles and in-jokes rather than real names. Readers who want the chronological version can start with internet culture history.
Etiquette follows from those traits. Communities expect newcomers to read before posting, to credit a format’s origin when asked, and to recognize when a joke has run its course. Breaking these unwritten norms is the fastest way to be labelled an outsider, and the norms differ by venue: what passes as ordinary banter on an anonymous board can read as hostile in a small moderated server.
The same openness has costs. Because anyone can remix a template, false claims travel in the same formats as jokes. The Navy Seal copypasta, for example, was reported as fact by media outlets after it appeared in a 2019 manifesto, a reminder that text built for comedy can be mistaken for testimony. Reading internet culture well means treating every viral item as a claim about its own origin that still needs checking.
Where did memes come from?
The word meme was introduced by Richard Dawkins in his 1976 book The Selfish Gene, to describe a conceptual unit of cultural transmission, analogous to the gene in biology. Dawkins later described the internet use of the word as a “hijacking of the original idea”. By 2013, the media scholar Limor Shifman had reworked the concept for online settings, tying memes directly to internet culture.
Researchers Michele Knobel and Colin Lankshear tested Dawkins’ three traits of a successful meme, which are fidelity, fecundity and longevity, against online examples. They found that fidelity is better described as replicability, because online memes are constantly remixed while keeping a recognizable core. A meme is therefore less a fixed picture than a template that people keep rewriting.
The lolcat is the standard early example. Lolcats originated on the imageboard 4chan and became the prototype of the image macro, a picture overlaid with large caption text. The domain lolcats.com was registered on June 14, 2006, and the first image on the I Can Has Cheezburger site went up on January 11, 2007. Time magazine noted that the format had a distinctly old-school, early 1990s, Usenet feel, which is a reminder that the habits are older than the platforms.
Lolcats also show how a joke grows an afterlife. Their caption syntax became the basis for LOLCODE, an esoteric programming language. In 2016 the artists Eva and Franco Mattes made a taxidermy installation of the Ceiling Cat character, and it now sits in the collection of the San Francisco Museum of Modern Art. A format that began as a captioned kitten moved into a museum, which shows how quickly a throwaway joke can be treated as art.
Memes can also carry politics. Pepe the Frog has been used as a symbol for the alt-right political movement and, separately, for pro-democracy ideas in the 2019-2020 Hong Kong protests. The same image can mean opposite things in different hands, which is why context matters more than the picture.
Which platforms shaped the culture?
Platform design decides what kind of culture grows. Three communities show the range: an anonymous imageboard, a topic-sorted forum, and a chat server network.
4chan
4chan was launched on October 1, 2003, by Christopher “moot” Poole, then a student from New York City. It began as an unofficial English-language counterpart to the Japanese imageboard Futaba Channel. By 2022 it was receiving more than 22 million unique monthly visitors. Users typically post anonymously, and a 2011 interview put its volunteer moderator team at approximately 20 people.
Anonymity means a post carries no reputation, so only the content gets judged. That pressure produced a hothouse for formats: lolcats, rage comics, wojaks and Rickrolling all trace through it. In 2008 The Guardian summed up the community as “lunatic, juvenile […] brilliant, ridiculous and alarming”. The deeper background is covered in the page on 4chan culture.
Reddit was founded in June 2005 by University of Virginia roommates Steve Huffman and Alexis Ohanian, and Aaron Swartz joined that November. Condé Nast Publications acquired the site in October 2006. Posts are organized by subject into user-created boards called subreddits, so each interest gets its own rules, moderators and running jokes. The company reported revenue of US$2.20 billion for 2025. The page on reddit culture looks at how voting, karma and subreddit rules produce a different tone from anonymous boards.
Discord
Discord was publicly released in May 2015. Its co-founder Jason Citron had sold the social gaming network OpenFeint to GREE in 2011 for $104 million, and Discord raised a further $20 million in January 2016. As of 2025, Discord reports 200 million monthly active users, and as of 2024 it counted 19 million weekly active servers. Those small private servers produce in-jokes that never reach the public web, which is a different way of making culture than a public feed. See discord culture for the server-level customs.
Comparing the three clarifies the trade-offs. 4chan optimizes for anonymity and speed, so its output is fast, abrasive and widely exported. Reddit optimizes for topic and reputation, so its output is organized, searchable and archived. Discord optimizes for closeness, so its output is private, dense with references and hard to cite. Each design pushes humor in a different direction, and a single joke often passes through all three: it starts on an imageboard, gets collected into a subreddit, and ends up as a reaction sticker in a chat server.
The platforms also differ in how they treat history. An imageboard thread disappears when it ages out, which is why researchers rely on third-party archives, and a chat server keeps its own scrollback that only members can read. A subreddit leaves a public record of posts and comments that later researchers and journalists cite. Anyone reconstructing the origin of a format has to ask which of the three kept the evidence, and which one quietly deleted it.
Taken together, the three platforms also explain why internet culture feels both global and local. A format born on an American imageboard can be translated into other languages, yet each community adds its own references, so the same template ends up carrying different jokes in different places. The Japanese imageboard that 4chan was modelled on is a reminder that the exchange has always run in both directions, with anime fan art and doujin circles among the early image-based forms. Understanding a meme therefore means asking two questions: where it started, and who is using it now.
It also helps to separate infrastructure from custom. The software behind a platform, such as threads, upvotes or voice channels, sets the possible moves, but the community decides which moves count as funny, rude or on-topic. Two sites with nearly identical features can end up with opposite tones, which is why the pages on each community focus on habits and vocabulary rather than on screenshots of interface settings.
What formats carry the jokes?
A format is a reusable shape for a joke. Formats come as visual (image macros, reaction images), textual (pasted paragraphs) or performed (a bait-and-switch link). Knowing the shape makes the content easier to read.
The bait-and-switch: Rickrolling
Rickrolling originated on May 15, 2007, when 4chan user Shawn Cotter uploaded the “Never Gonna Give You Up” music video to YouTube and linked to it in place of the trailer for the video game Grand Theft Auto IV. Awareness grew after two events in April 2008: YouTube used the prank for its April Fools’ Day event, and users of several websites voted the song into a poll for the New York Mets’ rally song. In 2008 the hacker group Anonymous also used it in a campaign to protest the Church of Scientology. The singer Rick Astley declined to appear at the 2008 MTV Europe Music Awards, where an online vote had named him “Best Act Ever”, yet his career was revitalised by the prank. The prank is still circulating after more than 15 years.
Copy-and-paste text
A copypasta is a block of text that people paste verbatim for comedy. The word comes from “copy and paste”, and its use can be traced to an anonymous 4chan thread from 2006. The Navy Seal copypasta, an aggressive paragraph that is reposted as a humorous overreaction to an insult, has an earliest known appearance on 4chan on November 11, 2010. The Bee Movie script opening, “According to all known laws of aviation, there is no way that a bee should be able to fly”, works the same way: the joke is the repetition, not the text.
Why repetition is the joke
Both Rickrolling and the pasted block rely on shared knowledge. The Rickroll works only if the target does not expect the link, and the copypasta works only if the audience recognizes the text and enjoys seeing it again. Scholars of memes describe the same pattern as in-group signalling: recognizing the reference marks a reader as a member, while explaining it kills it. That is why a meme explained at length, including in guides like this one, loses the effect it had in context.
The formats also age differently. Image macros peaked in the mid-and-late 2000s, while the pasted-text tradition has stayed active because it needs no image hosting and survives any platform change. A reader looking at an old lolcat sees a period piece, whereas a pasted paragraph from 2010 can still be posted today without looking dated.
Deliberately bad posts and humor styles
A shitpost is a post made to be absurd or low-effort on purpose, and it sits inside a wider tradition of online humor built on irony, non-sequiturs and layers of self-reference. These styles reward familiarity. A joke gets funnier the more of its earlier versions a reader has seen, which is why outsiders often find the result baffling.
One caution on sourcing: formats spread faster than anyone documents them. Dates in this guide come from Wikipedia entries that cite primary reporting, and the earliest known use of a format is often revised when older examples surface. Time’s Lev Grossman, for instance, first dated the oldest lolcat to 2006 and later retracted that after readers sent counter-examples.
How does internet slang change the language?
The Oxford University Press named “brain rot” its Word of the Year for 2024, ahead of candidates such as demure and romantasy. The term describes digital media deemed to be of low quality or value, and more broadly the harmful cognitive effects linked to excessive scrolling. Its history is longer than the headline suggests: Henry David Thoreau used it in 1854, comparing a decline in intellectual standards to the potato blight of the 1840s, and Twitter users applied it to dating game shows and “hanging out online” in 2007.
The word shows the usual slang cycle. A phrase appears in a niche, a platform amplifies it, a mainstream outlet reports it, and the original users move on to a replacement. One researcher, Sri Lestari of Universitas Muhammadiyah Surakarta, observed that brain rot is not classified as an official psychological disorder, while still recommending self-control and reduced screen time for the young. The label is cultural, not clinical.
For a working glossary, the pages on internet slang and online slang split the vocabulary by origin and by platform. Live video has its own dialect of emotes and chat shorthand, covered under stream slang.
A practical rule for reading slang: check the date and the community first. A word used by a gaming server in 2019 may mean something different in a news headline in 2024. The same caution applies to quoting slang yourself. Using a term well means knowing who coined it, who still uses it unironically, and who has retired it.
Slang also reveals who is speaking. Gaming communities supply a large share of the vocabulary, Discord remains primarily used by gamers according to its Wikipedia entry, and streaming chat adds abbreviations that exist only because messages scroll past in seconds. Short-form video then carries the words to a general audience, where they are repeated until they feel worn out. Oxford’s choice of brain rot in 2024 was a sign of that process: a phrase from a niche had become the label a mainstream audience used to describe its own habits.
Three lessons follow for a careful reader. First, treat dates as ranges, since the first recorded use rarely matches the first use. Second, separate the community that coined a term from the audience that popularized it. Third, expect meanings to drift, because irony, reclaiming and parody turn an insult into an in-joke and back again within a single comment thread. Those habits make the rest of the guide’s pages easier to use.
Frequently asked questions
What does internet culture mean?
Internet culture means the customs, humor and language of online communities. Pew Research Center data show 97% of U.S. adults use the internet in 2026, so the term now covers a mainstream audience rather than a niche.
Who invented the word meme?
Richard Dawkins coined meme in his 1976 book The Selfish Gene, and Limor Shifman adapted the concept to online use by 2013.
Where did Rickrolling start?
Rickrolling started on May 15, 2007, when a 4chan user linked the “Never Gonna Give You Up” video in place of a Grand Theft Auto IV trailer.
Is brain rot a medical diagnosis?
No. Brain rot is a cultural label, and the Wikipedia entry notes it has not been classified as an official psychological disorder, although Oxford University Press chose it as its 2024 Word of the Year.
