If you use the internet you will probably know about, or at least have heard of, Wikpedia, the open and free online encyclopedia. But did you know it is part of a much broader range of free and open information resources, all hosted by the Wikimedia Foundation?
The Wikimedia Foundation is the nonprofit that hosts Wikipedia and other free knowledge projects. Wikimedia is a global movement whose mission is to bring free educational content to the world.
Through various projects, chapters, and the support structure of the non-profit Wikimedia Foundation, Wikimedia strives to bring about a world in which every single human being can freely share in the sum of all knowledge.
We use these resources on a daily basis to verify some of the information and news articles we post. There is Wikipedia, of course, and for royalty free image files we often rely on Wikimedia Commons. (also Unsplash)
Wiktionary is a multilingual, web-based project to create a free content dictionary of terms (including words, phrases, proverbs, etc.) in all natural languages and a number of artificial languages. These entries may contain definitions, pronunciation guides, inflections, usage examples, related terms, images for illustration, 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 171 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 based on an idea by Daniel Alston and implemented by Brion Vibber, the goal of the project, which began as an outgrowth to Wikipedia Famous Quotations, is to produce collaboratively a vast reference of quotations from prominent people, books, films, proverbs, etc. and to be as proper as possible in regard to the details of the quotations and also providing the appropriate human reference of the quotation. Though there are many online collections of quotations, Wikiquote is distinguished by being among the few that provide an opportunity for visitors to contribute and the very few which strive to provide exact sources for each quotation as well as corrections of misattributed quotations. Wikiquote pages are cross-linked to articles about the notable personalities on Wikipedia
Wikibooks (previously called Wikimedia Free Textbook Project and Wikimedia-Textbooks) is a wiki-based Wikimedia project hosted by the Wikimedia Foundation for the creation of free content e-book textbooks and annotated texts that anyone can edit. Two major sub-projects, Wikijunior and Wikiversity, were created within Wikibooks before its official policy was later changed so that future incubator-type projects are started according to the Wikimedia Foundation's new project policy.
Wikinews is a free-content news source wiki 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." The neutral point of view policy espoused in Wikinews distinguishes it from other citizen journalism efforts such as Indymedia and OhmyNews. In contrast to most projects of the Wikimedia Foundation, Wikinews allows original work under the form of original reporting and interviews.
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; like Wikipedia it is available in many languages.
One element of Wikiversity is a set of WikiJournals which publish peer-reviewed articles in a stable, indexed, and citable, format comparable with academic journals; these can be copied to Wikipedia, and are sometimes based on Wikipedia articles.
Wikispecies aims to create a comprehensive free content catalogue of all species; the project is directed at scientists, rather than at the general public. Jimmy Wales stated that editors are not required to fax in their degrees, but that submissions will have to pass muster with a technical audience. Wikispecies is available under the GNU Free Documentation License and CC BY-SA 3.0.
Started in September 2004, with biologists across the world invited to contribute, the project had grown a framework encompassing the Linnaean taxonomy with links to Wikipedia articles on individual species by April 2005.
MediaWiki is a free and open-source wiki engine. It was developed for use on Wikipedia in 2002, and given the name "MediaWiki" in 2003. It remains in use on Wikipedia and almost all other Wikimedia websites, including Wiktionary, Wikimedia Commons and Wikidata; these sites continue to define a large part of the requirement set for MediaWiki. MediaWiki was originally developed by Magnus Manske and improved by Lee Daniel Crocker. Its development has since then been coordinated by the Wikimedia Foundation.
Wikidata is a collaboratively edited knowledge base hosted by the Wikimedia Foundation. It is a common source of open data that Wikimedia projects such as Wikipedia can use, and anyone else, under a public domain license. This is similar to the way Wikimedia Commons provides storage for media files and access to those files for all Wikimedia projects, and which are also freely available for reuse. Wikidata is powered by the software Wikibase.
Wikimedia Commons (or simply Commons) is an online repository of free-use images, sounds, other media, and JSON files. It is a project of the Wikimedia Foundation.
Files from Wikimedia Commons can be used across all Wikimedia projects in all languages, including Wikipedia, Wiktionary, Wikibooks, Wikivoyage, Wikispecies, Wikisource, and Wikinews, or downloaded for offsite use. As of 2019, the repository contains over 55 million free media files, managed and editable by registered volunteers. In July 2013, the number of edits on Commons reached 100,000,000.
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. Wikivoyage has been called the "Wikipedia of travel guides".
The project began when editors at the German and then Italian versions of Wikitravel decided in September 2006 to move their editing activities and then current content to a new site, in accordance with the site copyright license, a procedure known as "forking". The resulting site went live as "Wikivoyage" on December 10, 2006 and was owned and operated by a German association set up for that purpose, Wikivoyage e.V. (which continues to be its representative association).