An Internet meme, commonly known as just a meme (/miːm/ MEEM) is an activity, concept, catchphrase, or piece of media that spreads, often as mimicry or for humorous purposes, from person to person via the Internet. An Internet meme usually takes the form of an image (traditionally an image macro), GIF or video. It may be just a word or phrase, sometimes including intentional misspellings (such as in lolcats) or corrupted grammar (such as in doge and all your base are belong to us).
In the early days of the Internet, such content was primarily spread via email or Usenet discussion communities. Messageboards and newsgroups were also popular because they allowed a simple method for people to share information or memes with a diverse population of internet users in a short period. They encourage communication between people, and thus between meme sets, that do not normally come in contact. Furthermore, they actively promote meme-sharing within the messageboard or newsgroup population by asking for feedback, comments, opinions, etc. Another factor in the increased meme transmission observed over the internet is its interactive nature. Print matter, radio, and television are all essentially passive experiences requiring the reader, listener, or viewer to perform all necessary cognitive processing; in contrast, the social nature of the Internet allows phenomena to propagate more readily. Many phenomena are also spread via web search engines, internet forums, social networking services, social news sites, and video hosting services. Much of the Internet’s ability to spread information is assisted from results found through search engines, which can allow users to find memes even with obscure information.