Wikipedia, a free-content online encyclopedia written and maintained by a community of volunteers known as Wikipedians, began with its first edit on 15 January 2001, two days after the domain was registered. It grew out of Nupedia, a more structured free encyclopedia, as a way to allow easier and faster drafting of articles and translations.
Wiktionary is a multilingual, web-based project to create a free content dictionary of terms in all natural languages and in a number of artificial languages. These entries may contain definitions, images for illustration, pronunciations, etymologies, inflections, usage examples, quotations, related terms, and translations of terms into other languages, among other features. It is collaboratively edited via a wiki. Its name is a portmanteau of the words wiki and dictionary. It is available in 192 languages and in Simple English. Like its sister project Wikipedia, Wiktionary is run by the Wikimedia Foundation, and is written collaboratively by volunteers, dubbed "Wiktionarians". Its wiki software, MediaWiki, allows almost anyone with access to the website to create and edit entries.
Wikiquote is part of a family of wiki-based projects run by the Wikimedia Foundation using MediaWiki software. The project's objective is to produce collaboratively a vast reference of quotations from prominent people, books, films, proverbs, etc. and writings about them. The website aims to be as accurate as possible regarding the provenance and sourcing of the quotations.
The English Wikipedia is the primary English-language edition of Wikipedia, an online encyclopedia. It was created by Jimmy Wales and Larry Sanger on January 15, 2001, as Wikipedia's first edition.
Wikibooks is a wiki-based Wikimedia project hosted by the Wikimedia Foundation for the creation of free content digital textbooks and annotated texts that anyone can edit.
Wikisource is an online digital library of free-content textual sources on a wiki, operated by the Wikimedia Foundation. Wikisource is the name of the project as a whole and the name for each instance of that project ; multiple Wikisources make up the overall project of Wikisource. The project's aim is to host all forms of free text, in many languages, and translations. Originally conceived as an archive to store useful or important historical texts, it has expanded to become a general-content library. The project officially began on November 24, 2003, under the name Project Sourceberg, a play on the famous Project Gutenberg. The name Wikisource was adopted later that year and it received its own domain name.
Wikinews is a free-content news wiki and a project of the Wikimedia Foundation that works through collaborative journalism. Wikipedia co-founder Jimmy Wales has distinguished Wikinews from Wikipedia by saying, "On Wikinews, each story is to be written as a news story as opposed to an encyclopedia article." Wikinews's neutral point of view policy aims to distinguish it from other citizen journalism efforts such as Indymedia and OhmyNews. In contrast to most Wikimedia Foundation projects, Wikinews allows original work in the form of original reporting and interviews. In contrast to newspapers, Wikinews does not permit op-ed.
The Wikimedia movement is the global community of contributors to the Wikimedia projects, including Wikipedia. This community directly builds and administers these projects with the commitment of achieving this using open standards and software.
The Latvian Wikipedia is the Latvian-language edition of the free online encyclopedia Wikipedia. It was created on 6 June 2003. With more than 127,000 articles, it is currently the 68th-largest Wikipedia as measured by the number of articles and the second-largest Wikipedia in a Baltic language after the Lithuanian Wikipedia.
Wikivoyage is a free web-based travel guide for travel destinations and travel topics written by volunteer authors. It is a sister project of Wikipedia and supported and hosted by the same non-profit Wikimedia Foundation (WMF). Wikivoyage has been called the "Wikipedia of travel guides".
The Wikimedia Foundation, Inc., abbreviated WMF, is an American 501(c)(3) nonprofit organization headquartered in San Francisco, California, and registered there as a charitable foundation. It is best known as the host of Wikipedia, the seventh most visited website in the world. However, the foundation also hosts 14 other related content projects. It also supports the development of MediaWiki, the wiki software that underpins them all.
The Swedish Wikipedia is the Swedish-language edition of Wikipedia and was started on the 23 of May 2001. It is currently the fifth largest Wikipedia by article count with its 2,581,060 current articles, it has a Wikipedia article depth of 17.48. A majority were generated by Lsjbot, a bot, or software application. The administrators on the Swedish Wikipedia are elected for a fixed-term period of one year and have to be re-elected after that time.
The Spanish Wikipedia is a Spanish-language edition of Wikipedia, a free online encyclopedia. It has 1,943,304 articles. Started in May 2001, it reached 100,000 articles on March 8, 2006, and 1,000,000 articles on May 16, 2013. It is the 8th-largest Wikipedia as measured by the number of articles and has the 4th-most edits. It also ranks 12th in terms of article depth among Wikipedias.
Wikiversity is a Wikimedia Foundation project that supports learning communities, their learning materials, and resulting activities. It differs from Wikipedia in that it offers tutorials and other materials for the fostering of learning, rather than an encyclopedia. It is available in many languages.
On Wikimedia Foundation projects, an Arbitration Committee (ArbCom) is a binding dispute resolution panel of editors. Each of Wikimedia's projects are editorially autonomous and independent, and some of them have established their own ArbComs who work according rules developed by the project's editors and are usually annually elected by their communities. ArbComs generally address misconduct by administrators and editors with access to advanced tools, and a range of "real-world" issues related to harmful conduct that can arise in the context of Wikimedia projects. Rulings, policies and procedures differ between projects depending on local and cultural contexts. According to the Wikimedia Terms of Use, users are not obliged to have a dispute solved by an ArbCom.
The Volapük Wikipedia is the Volapük-language edition of the free online encyclopedia Wikipedia. It was created in February 2003, but launched in January 2004. As of 31 March 2024, it is the 108th-largest Wikipedia as measured by the number of articles, with about 36,000 articles, and the second-largest Wikipedia in a constructed language after the Esperanto Wikipedia.
The Wiki Education Foundation is a 501(c)(3) nonprofit organization based in San Francisco, California. It runs the Wikipedia Education Program, which promotes the integration of Wikipedia into coursework by educators in Canada and the United States.
The Signpost is the Wikimedia movement's online newspaper. Managed by the volunteer community, it is published online with contributions from Wikimedia editors. The newspaper's scope includes the Wikimedia community and events related to Wikipedia, including Arbitration Committee rulings, Wikimedia Foundation issues, and other Wikipedia-related projects. It was founded in January 2005 by Wikipedian Michael Snow, who continued as a contributor until his February 2008 appointment to the Wikimedia Foundation's Board of Trustees.
WikiConference North America, formerly WikiConference USA, is an annual conference organized by the Wikipedia community in North America.
