Encyclopedian

==Related projects==
{{sisterlinks}}
A number of interactive multimedia encyclopedias incorporating entries written by the public existed long before Wikipedia was founded. The first of these was the 1986 [[BBC Domesday Project]], which included text (entered on [[BBC Micro]] computers) and photographs from over 1&nbsp;million contributors in the [[United Kingdom|UK]], and covering the geography, art, and culture of the UK. This was the first interactive multimedia encyclopedia (and was also the first major multimedia document connected through internal links), with the majority of articles being accessible through an interactive map of the UK. The user-interface and part of the content of the Domesday Project have now been emulated on a website.<ref name="Domesday Project">[http://web.archive.org/web/20070115135325/http://www.domesday1986.com/ Web-based emulator of the Domesday Project User Interface] and data from the Community Disc (contributions from the general public) – most articles can be accessed using the interactive map</ref> One of the most successful early online encyclopedias incorporating entries by the public was [[h2g2]], which was created by [[Douglas Adams]] and is run by the [[BBC]]. The h2g2 encyclopedia was relatively light-hearted, focusing on articles which were both witty and informative. Both of these projects had similarities with Wikipedia, but neither gave full editorial freedom to public users. A similar non-wiki project, the [[GNUPedia]] project, co-existed with Nupedia early in its history; however, it has been retired and its creator, [[free software]] figure [[Richard Stallman]], has lent his support to Wikipedia.<ref name="stallman1999" />

Wikipedia has also spawned several sister projects, which are also run by the Wikimedia Foundation. The first, "In Memoriam: September<!--Do not reformat this date, it is quoted--> 11 Wiki",<ref>{{cite web |url=http://www.sep11memories.org/wiki/In_Memoriam |title=In Memoriam: September 11, 2001 |accessdate=2007-02-06}}</ref> created in October 2002,<ref>[http://www.sep11memories.org/index.php?title=In_Memoriam&oldid=1502 First edit to the wiki] In Memoriam: September 11 wiki (October 28, 2002),</ref> detailed the [[September 11 attacks]]; this project was closed in October 2006. [[Wiktionary]], a dictionary project, was launched in December 2002;<ref>"[http://meta.wikimedia.org/w/index.php?title=Wikimedia_News&diff=prev&oldid=4133 Announcement of Wiktionary's creation]", December 12, 2002. Retrieved on [[2007-02-02]].</ref> [[Wikiquote]], a collection of quotations, a week after Wikimedia launched, and [[Wikibooks]], a collection of collaboratively written free books. Wikimedia has since started a number of other projects, including [[Wikiversity]], a project for the creation of free learning materials and the provision of online learning activities.<ref name="OurProjects">"[http://wikimediafoundation.org/wiki/Our_projects Our projects]", [[Wikimedia Foundation]]. Retrieved on [[2007-01-24]]</ref> None of these sister projects, however, has come to meet the success of Wikipedia.

Some subsets of Wikipedia's information have been developed, often with additional review for specific purposes.
For example, Wikipedia for Schools, the Wikipedia series of CDs/DVDs, produced by Wikipedians and [[SOS Children's Villages UK|SOS Children]], is a free, hand-checked, non-commercial selection from Wikipedia targeted around the UK National Curriculum and intended to be useful for much of the English speaking world.<ref>[http://en.wikipedia.org/wiki/Wikipedia:Wikipedia_CD_Selection Wikipedia CD Selection]. Accessed 2009 September 8</ref> The project is available online; an equivalent print encyclopedia would require roughly twenty volumes. There has also been a attempt to put a select subset of Wikipedia's articles into printed book form.<ref>{{cite web|title=Wikipedia turned into book|url=http://www.telegraph.co.uk/news/newstopics/howaboutthat/5549589/Wikipedia-turned-into-book.html|archiveurl=http://www.webcitation.org/5jeCgQjpj|publisher=Telegraph Media Group|work=Telegraph.co.uk|date=2009-06-16|accessdate=2009-09-08|archivedate=2009-09-08}}</ref><ref>[http://schools-wikipedia.org Wikipedia Selection for Schools]. Accessed 2009 September 8.</ref>

Other websites centered on collaborative [[knowledge base]] development have drawn inspiration from or inspired Wikipedia. Some, such as [[Susning.nu]], [[Enciclopedia Libre Universal en Español|Enciclopedia Libre]], and [[WikiZnanie]] likewise employ no formal review process, whereas others use more traditional [[peer review]], such as [[Encyclopedia of Life]], [[Stanford Encyclopedia of Philosophy]], [[Scholarpedia]], [[h2g2]], and [[Everything2]]. [[Citizendium]], an online encyclopedia, was started by Wikipedia co-founder Larry Sanger in an attempt to create an "expert-friendly" Wikipedia.<ref name="defactoleader">{{cite news
|first=Holden
|last=Frith
|url=http://technology.timesonline.co.uk/tol/news/tech_and_web/the_web/article1571519.ece
|title=Wikipedia founder launches rival online encyclopedia
|publisher=The Times
|date=March 26, 2007,
|accessdate=2007-06-27
|quote=Wikipedia's de facto leader, Jimmy Wales, stood by the site's format.&nbsp;– Holden Frith.}}</ref><ref name="Orlowski18">
{{cite news
|first=Andrew
|last=Orlowski
|authorlink=Andrew Orlowski
|url=http://www.theregister.co.uk/2006/09/18/sanger_forks_wikipedia/
|title=Wikipedia founder forks Wikipedia, More experts, less fiddling?
|publisher=The Register
|date=September 18, 2006
|accessdate=2007-06-27
|quote=Larry Sanger describes the Citizendium project as a "progressive or gradual fork", with the major difference that experts have the final say over edits.}}&nbsp;– Andrew Orlowski.</ref><ref name="JayLyman">{{cite news
|first=Jay
|last=Lyman
|url=http://www.crmbuyer.com/story/53137.html
|title=Wikipedia Co-Founder Planning New Expert-Authored Site
|publisher=LinuxInsider
|date=September 20, 2006
|accessdate=2007-06-27}}</ref>