The Wikimedia Foundation (WMF), founded June 2003, is the non-profit organization responsible for a very large number (over 850 in total) of very active wikis, grouped together and known as 'projects'; as well as the wiki engine software initially developed for them known as MediaWiki. The Foundations' wiki projects include Wikipedia (encyclopedias), Wiktionary (dictionary and thesaurus), Wikiquote (quotations), Wikibooks (open content textbooks), Wikinews (news source), Wikisource (free content primary and secondary source texts), Wikispecies (a free species directory), Wiktionary (dictionary), and many others as listed below. Most of these projects have separate wiki versions written in many different languages. There is also the Wikimedia Commons (for images, videos and other media files that can be used by all the Wikimedia projects), Wikidata (central space for data used on all WMF projects), and the Wikimedia Meta-Wiki (for issues common to all Wikimedia projects). Its most recent project, Wikivoyage (a 'travelpedia'), was added in late 2012.
Wikimedia Foundation is a member of the Open Source Initiative.
All Wikimedia Foundation projects and wikis (edit) • (category)
Wikipedia • Wiktionary • Wikibooks • Wikiquote • Wikisource • Wikispecies • Wikinews • Wikiversity • Wikivoyage • Commons • MediaWiki • Meta-Wiki • Incubator • Chapters • Wikimania • Outreach • Toolserver • Statistics • Wikitech • Labs • Downloads • Usability Initiative • Wikidata
- Wikimedia Foundation private and management wikis
Office • Board • Internal • Movement Roles • OTRS • Search Committee • Advisory Board • Strategic Planning • Spcom
- Wikimedia.org — portal to all of the major WMF projects
- WikimediaFoundation.org — public WMF wiki
- Wikimedia blog
- Complete list of Wikimedia projects at Wikimedia Meta-Wiki
- List of Wikimedia projects by size at Wikimedia Meta-Wiki
- SiteMatrix table of all Wikimedia wikis, listed by project, language and interwiki at Wikimedia Meta-Wiki
- Wikimedia server assignments at Wikimedia Toolserver
- Current status Wikimedia Foundation - Core services
- Wikistats: Wikimedia Statistics, from stats.Wikimedia.org
- Wikimedia Interactive Statistics, from Wikistatistics.net
- List of Wikimedia projects by size, from WikiStats by s23.org
- database list at noc.Wikimedia.org
- Wikimedia Grid Report, from ganglia.Wikimedia.org
- Bugzilla.Wikimedia.org
- Public Mailing Lists at lists.Wikimedia.org
- Wikimedia.org site info, from Alexa.com