MediaWiki is free and open-source wiki software originally developed by Magnus Manske for use on Wikipedia on January 25, 2002, and further improved by Lee Daniel Crocker, after which it has been coordinated by the Wikimedia Foundation. It powers several wiki hosting websites across the Internet, as well as most websites hosted by the Wikimedia Foundation including Wikipedia, Wiktionary, Wikimedia Commons, Wikiquote, Meta-Wiki and Wikidata, which define a large part of the set requirements for the software. MediaWiki is written in the PHP programming language and stores all text content into a database. The software is optimized to efficiently handle large projects, which can have terabytes of content and hundreds of thousands of views per second. Because Wikipedia is one of the world's largest and most visited websites, achieving scalability through multiple layers of caching and database replication has been a major concern for developers. Another major aspect of MediaWiki is its internationalization; its interface is available in more than 400 languages. The software has more than 1,000 configuration settings and more than 1,800 extensions available for enabling various features to be added or changed. Besides its usage on Wikimedia sites, MediaWiki has been used as a knowledge management and content management system on websites such as Fandom, wikiHow and major internal installations like Intellipedia and Diplopedia.
The English Wikipedia is the primary English-language edition of Wikipedia, an online encyclopedia. It was created by Jimmy Wales and Larry Sanger on 15 January 2001, as Wikipedia's first edition.
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 Project Gutenberg. The name Wikisource was adopted later that year and it received its own domain name.
The German Wikipedia is the German-language edition of Wikipedia, a free and publicly editable online encyclopedia.
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.
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".
Wikimedia UK (WMUK), also known as Wikimedia United Kingdom, is a registered charity established to support volunteers in the United Kingdom who work on Wikimedia projects such as Wikipedia. As such, it is a Wikimedia chapter approved by the Wikimedia Foundation (WMF), which owns and hosts those projects.
Erik Möller is a German freelance journalist, software developer, author, and former deputy director of the Wikimedia Foundation (WMF), based in San Francisco. Möller additionally works as a web designer and previously managed his own web hosting service, myoo.de. As of 2022, he was VP of Engineering at the Freedom of the Press Foundation.
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 the host of Wikipedia, the seventh most visited website in the world. In addition, the foundation hosts fourteen other related content projects. It supports the development of MediaWiki, the wiki software that underpins them all. The Foundation was established in 2003 in St. Petersburg, Florida by Jimmy Wales, as a nonprofit way to fund Wikipedia, Wiktionary, and other crowdsourced wiki projects. Until then, they had been hosted by Bomis, Wales's for-profit company.
Wikitravel is a web-based collaborative travel guide based on the wiki format and owned by Internet Brands. It was most active from 2003 through 2012, when most of its editing community left and brought their contributions to the nonprofit Wikivoyage guide.
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.
The Wikipedia community, collectively and individually known as Wikipedians, is an online community of volunteers who create and maintain Wikipedia, an online encyclopedia. Since August 2012, the word "Wikipedian" has been an Oxford Dictionary entry. Wikipedians may or may not consider themselves part of the Wikimedia movement, a global network of volunteer contributors to Wikipedia and other related projects hosted by the Wikimedia Foundation.
WikiConference India is a national Wikipedia conference organised in India. The first WikiConference India conference was held in November 2011, in Mumbai, the capital of the Indian state of Maharashtra. It was organised by the Mumbai Wikipedia community in partnership with Wikimedia India Chapter with the support of the Wikimedia Foundation. The conference is positioned as the annual national flagship event for Wikimedia in India and is open to participation from citizens of all nations. The focus is on matters concerning India on Wikipedia projects and other sister projects in English and other Indian folk languages. WikiConference India 2023 took place in Hyderabad from 28 to 30 April 2023.
Wikidata is a collaboratively edited multilingual knowledge graph hosted by the Wikimedia Foundation. It is a common source of open data that Wikimedia projects such as Wikipedia, and anyone else, is able to use under the CC0 public domain license. Wikidata is a wiki powered by the software MediaWiki, including its extension for semi-structured data, the Wikibase. As of early 2023, Wikidata had 1.54 billion item statements.
Wikimedia Deutschland is a German non-profit association based in Berlin. It was founded in 2004 and recognized that year as the first national chapter of the Wikimedia Foundation, which funds and supports Wikipedia and other projects.
The Wiki Education Foundation is a 501(c)(3) nonprofit organization based in San Francisco, California. It runs the Wikipedia Student Program, which promotes the integration of Wikipedia into coursework by educators in Canada and the United States.
Mayo Fuster Morell is a social researcher. Her research has focused on sharing economy, social movements, online communities and digital Commons, frequently using participatory action research and method triangulation. She has been part of the most important research centres studying Internet and its social effects, including the Berkman Center for Internet and Society, the MIT Center for Civic Media or the Berkeley School of Information. As an active citizen, she is the co-founder of multiple initiatives around digital Commons and Free Culture, such as the Procomuns Forum on collaborative economy.
Knowledge Engine (KE) was a search engine project initiated in 2015 by the Wikimedia Foundation (WMF) to locate and display verifiable and trustworthy information from public-information sources in a way that was less reliant on traditional search engines. It aimed to allow readers to stay on Wikipedia.org and other Wikipedia-related projects when looking for additional information rather than turning to proprietary search engines. Its goal was to protect user privacy, to be open and transparent about how its information originates, and to allow access to related metadata.
The Signpost is the English Wikipedia'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.
Felix Nartey is a Ghanaian social entrepreneur and open advocate. He was named the Wikimedian of the Year in August 2017 by Wikipedia co-founder Jimmy Wales at Wikimania. He is a Co-founder of Open Foundation West Africa and Creative Commons Ghana, where he is also the chapter lead.
