List of online encyclopedias

Last updated

This is a list of encyclopedias accessible on the Internet or formerly accessible on the Internet. The largest online encyclopedia s are general reference works. There are also many specialized ones. Some online encyclopedia are an online copy of a paper encyclopedia, or an online version. Some, such as Wikipedia, are a separate enterprise.


General reference

Baidu Baike ChineseCollaborative online encyclopedia hosted by the major Chinese search engine Baidu Free ChineseGeneral interest. China's largest wikiFree
The Canadian Encyclopedia English, FrenchGeneral interest (original content of the hard copy Canadian Encyclopedia)Free
Citizendium EnglishGeneral interest, wikiFree, copyleft
Columbia Encyclopedia EnglishGeneral interestFree
Conservapedia [1] [2] English American conservative and Christian interestsFree
Crnogorska Enciklopedija Montenegrin General interest (hopes to encourage a Montenegrin language Wikipedia)Defunct
Croatian Encyclopedia Croatian General and national encyclopediaFree
Den Store Danske Encyklopædi Danish General interestFree
Digital Universe EnglishCollection of articles on educational, cultural, and scientific topicsFree
Doosan Encyclopedia Korean General interestFree
EcuRed SpanishGeneral interest. CubanFree
Ekşi Sözlük Turkish General interestFree
Encarta EnglishGeneral interestDefunct
Enciclonet SpanishGeneral interestLimited free access and features, subscription for full access
Encyclopædia Britannica EnglishGeneral interestLimited free access and features, subscription for full access
Encyclopædia Britannica 11th Edition (1910–11)EnglishGeneral interestPublic domain: completely free access from several online sources EnglishGeneral interestFree
Encyclopedia of China ChineseGeneral interestSubscription
Encyclopedic Dictionary of Vietnam Vietnamese General interest. State-sponsored encyclopedia.Free
Encyklopedia Internautica Polish General interestFree
Enciclopedia Libre Universal en Español SpanishFork of the Spanish Wikipedia, using wiki software, released under the GFDL Free, copyleft
Encyclopedia Sindhiana Sindhi General interestLimited free access and features
Encyclopædia Universalis FrenchGeneral interest encyclopedia published by Encyclopædia BritannicaSubscription
Everipedia English [3] The site lets editors create any page on any topic [3] and anyone can edit a page by creating a free account. [4] Free [4]
Everything2 EnglishGeneral interest, users can submit articles on the topic of essentially anythingFree
GNE EnglishGeneral interest articles are released under a GNU license. Formerly GNUpedia.Defunct
Gran Enciclopèdia Catalana Catalan General interestFree
Grand Larousse encyclopédique FrenchGeneral interestFree
Great Norwegian Encyclopedia Norwegian (Bokmål) General interestFree
Great Russian Encyclopedia RussianGeneral interestFree
Great Soviet Encyclopedia Russian, EnglishGeneral interest, often from the former official Soviet viewpoint.Free
Hamichlol Hebrew, EnglishGeneral interest, designed for Haredim Free. Copyleft: mirror of Wikipedia content; copyright: original content.
Internetowa encyklopedia PWN Polish General interestFree
Interpedia EnglishGeneral interest, the first site to propose a free encyclopedia written by usersDefunct
Enciklopedio Kalblanda Esperanto General interest. The first online Esperanto encyclopediaDefunct (merged into Esperanto Wikipedia)
Krugosvet (Rus. Кругосвет) Russian General interest.Free
Marathi Vishwakosh Marathi General InterestFree
Marefa Arabic General interestFree
Mawdoo3 Arabic General interestFree
Metapedia Hungarian, German, English, Spanish, Swedish, Romanian, Estonian, French, Slovenian, Czech, Portuguese, Norwegian, Danish, Greek, Dutch Far right-wing, white nationalist and neo nazi encyclopediaFree
Meyers Konversations-Lexikon 4. ed. 1888 - 1892 GermanGeneral interestFree
Nationalencyklopedin Swedish General interest, comprehensiveSubscription
New World Encyclopedia EnglishGeneral interestFree. Wikipedia fork.
Nupedia EnglishCombined with GNUpediaDefunct
Open Site EnglishCategorized community-built encyclopedia, inspired by the Open Directory Project No longer an encyclopedia
Probert Encyclopaedia EnglishGeneral interestDefunct
Proleksis Encyclopedia Croatian General and national encyclopediaFree with registration
Sarvavijnanakosam Malayalam General interestFree
Scholarpedia EnglishArticles are written by scholars and peer-reviewed for accuracyFree
Superpedia Bahasa Indonesia, Sundanese, Javanese General interestFree Swedish A Swedish language wiki 2001–2009Defunct
Tamil Encyclopedia Tamil General InterestFree
Treccani ItalianGeneral interestFree
Veropedia English, Dutch, SpanishMirrors stable versions of selected English Wikipedia articlesDefunct
WIEM Encyklopedia Polish General interestFree
Wikipedia Various (see list here)General interest, wiki Free, copyleft
Winkler Prins Dutch General interest, three different age levelsSubscription
World Book Encyclopedia EnglishGeneral interestSubscription


Australian Dictionary of Biography EnglishEntries on notable Australians who have diedFree
Croatian Biographical Lexicon Croatian Multi-volume biographical reference work on notable figures from Croatian historyFree
Deutsche Biographie German Biographies on notable German speaking peopleFree
Dictionary of Canadian Biography English, FrenchEntries on notable CanadiansFree
Dictionary of Irish Architects EnglishBiographical information on Irish architects from 1720 to 1940Free
Kdo byl kdo Czech Biographies on notable Czech and Slovak people Free
Österreichisches Biographisches Lexikon 1815–1950 German Biographies on notable AustriansFree
Oxford Dictionary of National Biography EnglishComprehensive 66-volume reference work on notable figures from British historySubscription
Dictionary of New Zealand Biography English, Māori Entries on notable New Zealanders who have diedFree
Dizionario Biografico degli Italiani ItalianBiographical Dictionary of Italian People, published by the Istituto dell'Enciclopedia Italiana Treccani Free

Antiquities, arts, and literature

Dictionary of Greek and Roman Antiquities EnglishIncorporates text from the 19th century encyclopedia of the same name. Focuses on topics of cultural and historical Greek and Roman significance.Free
Dictionary of Greek and Roman Biography and Mythology EnglishFocuses on topics dealing with Greek and Roman mythology and peopleFree
Dictionary of Greek and Roman Geography EnglishFocuses on topic relating to Greek and Roman geographyFree
Enciclopedia Dantesca ItalianDevoted to Dante Alighieri and his time, by the Istituto dell'Enciclopedia Italiana Treccani Free
Encyclopedia Mythica EnglishContains articles on mythology, folklore, and religionFree
Harper's Dictionary of Classical Literature and Antiquities EnglishCovers subjects of classical antiquity; text from 1898Free
The History of Nordic Women's Literature English, Danish, SwedishSearchable online English-language version including many biographiesFree
The Literary Encyclopedia EnglishLiterature related articlesSubscription
Oxford Art Online EnglishVisual art; formerly Grove Art Online and The Dictionary of Art. Originally published in 1996 as a 34-volume printed encyclopedia; offered online since 1998.Subscription [5]
SIKART English, German, French, ItalianBiographical dictionary and database of Swiss visual artFree

Regional interest

Austria-Forum German, EnglishOnline database of Austrian cultureFree
Encyclopedia of Alabama EnglishArticles on the state of Alabama Free
Encyclopedia of Arkansas EnglishProject of the Central Arkansas Library System and is the only U.S. state encyclopedia sponsored by a public libraryFree
Banglapedia Bengali, EnglishBangladesh-related topicsFree
Chalo Chatu EnglishCollaborative online encyclopedia hosted by Chalochatu Foundation. Features comprehensive articles on Zambian culture and history, etc.Free
Dictionary of Sydney EnglishArticles on the history and culture of Sydney, AustraliaFree
Encyclopaedia of Islam , 3rd editionEnglishAbout the Islamic world, not a Muslim encyclopaediaSubscription
Encyclopædia Iranica English, plans for a future Persian versionTopics on Iranology and the influence of the Iranian peoples throughout historyFree
Encyclopedia of Korean Culture Korean Korea-related topicsFree
Encyclopedia of Ukraine English and Ukrainian Ukraine related articlesFree
Gazetteer for Scotland EnglishArticles on the geography and locations of Scotland Free
Handbook of Texas EnglishArticles on the U.S. State of Texas Free
Historical Dictionary of Switzerland French, German and ItalianArticles on the history of Switzerland.Free (without illustrations)
HistoryLink EnglishArticles pertaining to Washington state historyFree
Kodansha Encyclopedia of Japan EnglishComprehensive articles on Japanese arts and culture, history and politics, etc.Subscription
MNopedia EnglishPublished by the Minnesota Historical Society Free
New Georgia Encyclopedia EnglishArticles on the U.S. state Georgia Free
The Oregon Encyclopedia EnglishArticles pertaining to Oregon Free
Panyathai Thai, limited EnglishGeneral interest. Designed to honor the Thai king Bhumibol Adulyadej Free
Te Ara: The Encyclopedia of New Zealand English, Māori The New Zealand government site with content on the countryFree
Vienna History Wiki GermanArticles on the history of the city of Vienna, Austria. Includes 31,000 entries from the 2nd edition of Historisches Lexikon Wien.Free

Pop culture and fiction

Don Markstein's Toonopedia EnglishFocuses on articles pertaining to print and animated cartoonsFree
Encyclopedia Dramatica EnglishContains humorous articles, especially those related or relevant to contemporary Internet culture.Free
Emojipedia EnglishEmojiFree
Fringepedia EnglishContains articles pertaining to the American television drama Fringe .Free
h2g2 EnglishCollection of sometimes humorous encyclopedia articles, based on Douglas Adams's The Hitchhiker's Guide to the Galaxy.Free
Heroes Wiki English, Dutch, French, German, Hebrew, Italian, Portuguese, Spanish, Swedish, Turkish Contains articles pertaining to the American television drama Heroes .Free
Know Your Meme EnglishA website and video series which uses wiki software to document various Internet memes and other online phenomena, such as viral videos, image macros, catchphrases, and internet celebrities. [6] [7] Free
Lostpedia English, German, Spanish, French, Italian, Japanese, Dutch, Polish, Portuguese, Russian, ChineseContains articles pertaining to the hit drama Lost Free
Memory Alpha English, Bulgarian, Chinese, Czech, Dutch, Esperanto, French, German, Polish, Portuguese, Russian, Serbian, Spanish, Swedish Articles about Star Trek Free
The Encyclopedia of Science Fiction EnglishAuthors, books, films of SFFree
The Rocklopedia Fakebandica EnglishArticles on fake bands from popular entertainmentFree
Supernatural Wiki EnglishContains articles pertaining to the American television drama Supernatural .Free
TV Tropes English, German, Esperanto, Spanish, French, Norwegian, Finnish, Swedish, Al Bhed, QuenyaArticles related to the devices and conventions that a fiction writer can reasonably rely on as being present in the audience members' minds and expectationsFree
Uncyclopedia Multilingual Humour encyclopediaFree
Fallout Wiki English, German, Spanish, Bulgarian, Finnish, French, Georgian, Hungarian, Italian, Japanese, Korean, Lithuanian, Dutch, Norwegian, Polish, Portuguese, Russian, Swedish, Turkish, Chinese Fallout -related articlesFree
Wookieepedia English, German, Spanish, Bulgarian, Danish, Finnish, French, Croatian, Hungarian, Italian, Japanese, Dutch, Norwegian, Polish, Portuguese, Russian, Romanian, Slovak, Slovene, Swedish, Chinese Star Wars -related articlesFree
WoWWiki / Wowpedia English, German, Spanish, French, Czech, Danish, Greek, Persian, Finnish, Hebrew, Hungarian, Icelandic, Italian, Lithuanian, Latvian, Dutch, Nynorsk, Bokmål, Polish, Portuguese, Brazilian Portuguese, Russian, Slovak, Korean, Japanese, Chinese World of Warcraft -related articlesFree
Stargate fandom/Stargate Wiki [8] English Stargate -related articlesFree


Encyclopedia of Mathematics EnglishEncompasses articles on the topic of mathematics Free
Encyclopedia of Triangle Centers EnglishInformation about ten thousands of triangle centers, including coordinates, operations, incidence, equations, etc.Free
EqWorld English, RussianArticles on mathematical equations Free
MathWorld EnglishArticles on a wide variety of mathematics related topicsFree
On-Line Encyclopedia of Integer Sequences EnglishInformation about hundred thousands of integer sequences, including formulas, related sequences, programs, etc.Free/CC BY-NC 3.0
PlanetMath English Mathematics related topics and articlesFree/GNU
nLab English Category theory and related topicsFree


IMDb English, German, French, Hungarian,
Italian, Polish, Portuguese,
Romanian, Turkish and Spanish
Information related to world films, television programs,
home videos and video games,
and internet streams


Bulgarian Rock Archives Bulgarian Archives of Bulgarian rock bands
Encyclopaedia Metallum EnglishArchives of heavy metal bandsFree
Grove Music Online EnglishMostly on historic and classical music worldwide; in print form is The New Grove Dictionary of Music and Musicians , which has 20 printed volumes, and was first published in 1980Subscription [5]
MOOMA Hebrew Articles on Israeli music and musical artistsFree


Internet Encyclopedia of Philosophy EnglishPhilosophy related articlesFreeJames Fieser
Marxists Internet Archive multi-lingualTopics related to the study of Marxism FreeRationalMedia Foundation
RationalWiki [9] English Skeptical interests [10] Free
Routledge Encyclopedia of Philosophy EnglishPhilosophy articlesSubscriptionEdward Craig
Stanford Encyclopedia of Philosophy EnglishPhilosophy subjectsFreeEdward Zalta

Politics and history

Ancient History Encyclopedia EnglishHistorical encyclopedia targeted at students and the general public. Reviewed by editorial team, not a Wiki.Free
Ballotpedia EnglishAmerican politics, elections, and public policyFree
The Concise Encyclopedia of Economics EnglishEconomics – part of the Library of Economics and Liberty. Edited by David R. Henderson Free
Cyclopaedia of Political Science, Political Economy, and the Political History of the United States EnglishArticles pertaining to science, economics, and American authors. The 1899 edition is available onlineFree
Diplopedia English US State Department internal encyclopedic wiki, available for diplomats and overseas US agents to useAccess only through the State Department
dKosopedia EnglishPolitical encyclopedia written from a progressive/liberal Democratic point of viewFree
Encyclopedia Titanica EnglishEncyclopedia related to the building and sinking of the RMS TitanicFree
Encyclopedia of World Problems and Human Potential EnglishPresents articles on perceived human problemsFree
Gapminder EnglishHistorical global trends in health, poverty, and demographicsFree EnglishGay, lesbian, bisexual, transgender, and queer culture.Free
HistoryLink EnglishArticles on the history of Washington State Free
Holocaust Encyclopedia English, Arabic, Persian, French, SpanishHolocaust-related articles, published by the United States Holocaust Memorial MuseumFree
JurisPedia Arabic, English, Chinese, French, German, Spanish, Dutch An academic encyclopedia on the concepts of lawFree
Our World in Data EnglishGlobal trends on economic growth, poverty, health, war, violence, education and demographicsFree

Religion and theology

Boston Collaborative Encyclopedia of Western Theology EnglishArticles on Western Christian theologyFree, public domain
Catholic Encyclopedia EnglishTopics relating to Catholicism, text from 1913 and 1922Free, public domain
Christian Cyclopedia EnglishCollection of historical and theological informationFree
Easton's Bible Dictionary EnglishArticles on Christianity and theologyFree, public domain
Encyclopaedia Biblica EnglishContains articles pertaining to "the Literary, Political and Religious History, the Archaeology, Geography, and Natural History of the Bible"Free
Encyclopedia of Mormonism EnglishArticles by Mormon academics on history and doctrine of The Church of Jesus Christ of Latter-day Saints (LDS Church).Free
Global Anabaptist Mennonite Encyclopedia Online EnglishTopics relating to Anabaptism and Mennonites Free
The Jewish Encyclopedia EnglishTopics relating to Judaism Free
Jewish Virtual Library EnglishPortals to essential Jewish topicsFree
Punjabipedia Punjabi Entries on SikhismSubscription
Schaff–Herzog Encyclopedia of Religious Knowledge EnglishChristian, published 1908–1914Free, public domain

Science and technology

Encyclopedia Astronautica EnglishContains articles on the subject of space exploration and astronomy Free
Encyclopedia of Earth EnglishArticles on the Earth and its ecosystemsFree
Encyclopedia of Science EnglishA-to-Z of science (and technology, mathematics, philosophy, etc.) maintained and updated daily by astronomer and author David Darling Free
Engineering and Technology History Wiki EnglishThe history of technology, a partnership between the United Engineering Foundation, and the AIChE, AIME, ASCE, ASME, IEEE, SPE, and SWEFree
Free On-line Dictionary of Computing EnglishComputing and related subjectsFree
Glottopedia EnglishLinguisticsFree
Javapedia EnglishCoverage of all topics related to the Java platform Free
Omniglot EnglishCovers languages and writing systems.Free
RP Photonics Encyclopedia English Laser technology, photonics, and related areas such as optical fibers and ultrashort pulses.Free
ScienceWorld EnglishCovers astronomy, scientific biography, chemistry, and physics. Like MathWorld, it is edited by Eric Weisstein.Free

Life sciences

Animal Diversity Web EnglishStudent wiki-type database at the University of Michigan of animal natural history, distribution, classification, and conservation biology.Free
APpedia ChineseContains articles on the subject of general animal protection Free
ARKive EnglishVisual and audio recordings of the world's speciesFree
Encyclopedia of Life English, FrenchSeeks to categorize all 1.8 million known species on the planetFree
Encyclopedia of Life Sciences English Biology related articlesSubscription
Encyclopedia of Life Support Systems EnglishArticles about the natural and social sciences Subscription
Erowid EnglishInformation about psychoactive substancesFree
FishBase English, Spanish, Portuguese, French, German, Italian, Dutch,
Chinese (Simplified Han), Chinese (Traditional Han), Greek,
Swedish, Russian, Persian, Vietnamese, Thai, Lao, Hindi, Bengali
Articles on fish speciesFree
Flora Europaea EnglishCovers different plant speciesFree
Ganfyd EnglishMedical contentDefunct
King Abdullah Bin Abdulaziz Arabic Health Encyclopedia Arabic, EnglishHealth encyclopediaFree
Palaeos EnglishCovers palaeontology Free
The Plant List EnglishCovers Flora Free
Radiopaedia EnglishArticles on medical imaging used in radiology and radiography Free
Wikispecies EnglishSeeks to create a catalogue of all living thingsFree
ZipcodeZoo EnglishEncyclopedia of all living thingsFree

See also

Related Research Articles

History of Wikipedia Historical development of Wikipedia

Wikipedia began with its first edit on 15 January 2001, two days after the domain was registered by Jimmy Wales and Larry Sanger. Its technological and conceptual underpinnings predate this; the earliest known proposal for an online encyclopedia was made by Rick Gates in 1993, and the concept of a free-as-in-freedom online encyclopedia was proposed by Richard Stallman in December 2000.

Wiki type of website that visitors can edit

A wiki is a hypertext publication collaboratively edited and managed by its own audience directly using a web browser. A typical wiki contains multiple pages for the subjects or scope of the project and may be either open to the public or limited to use within an organization for maintaining its internal knowledge base.

PlanetMath is a free, collaborative, online mathematics encyclopedia. The emphasis is on rigour, openness, pedagogy, real-time content, interlinked content, and also community of about 24,000 people with various maths interests. Intended to be comprehensive, the project is currently hosted by the University of Waterloo. The site is owned by a US-based nonprofit corporation, ", Ltd".

The Internet Speculative Fiction Database (ISFDB) is a database of bibliographic information on genres considered speculative fiction, including science fiction and related genres such as fantasy fiction and horror fiction. The ISFDB is a volunteer effort, with both the database and wiki being open for editing and user contributions. The ISFDB database and code are available under Creative Commons licensing and there is support within both Wikipedia and ISFDB for interlinking. The data are reused by other organizations, such as Freebase, under the creative commons license.

Open Library Online project for book data of the Internet Archive

Open Library is an online project intended to create "one web page for every book ever published". Created by Aaron Swartz, Brewster Kahle, Alexis Rossi, Anand Chitipothu, and Rebecca Malamud, Open Library is a project of the Internet Archive, a nonprofit organization. It has been funded in part by grants from the California State Library and the Kahle/Austin Foundation. Open Library provides online access to many public domain and out-of-print books.

Wikimedia movement Social movement around Wikimedia including content publications, Wikimedia organizations, and independent editors

The Wikimedia movement, or simply Wikimedia, is the global community of contributors to Wikimedia Foundation projects. The movement was created around Wikipedia's community, and has since expanded to the other Wikimedia projects, including the commons projects Wikimedia Commons and Wikidata, and volunteer software engineers and developers contributing to MediaWiki. These volunteers are supported by numerous organizations around the world, including the Wikimedia Foundation, related chapters, thematic organizations, and user groups.

Wikipedia Free online encyclopedia that anyone can edit

Wikipedia is a multilingual online encyclopedia created and maintained as an open collaboration project by a community of volunteer editors, using a wiki-based editing system. It is the largest and most popular general reference work on the World Wide Web, and is one of the 20 most popular websites ranked by Alexa, as of March 2020. It features exclusively free content and no commercial ads and is owned and supported by the Wikimedia Foundation, a non-profit organization funded primarily through donations.

Vietnamese Wikipedia Vietnamese-language edition of Wikipedia

The Vietnamese Wikipedia is the Vietnamese-language edition of Wikipedia, a free, publicly editable, online encyclopedia supported by the Wikimedia Foundation. As with other language editions of Wikipedia, the project's content is both created and accessed using the MediaWiki wiki software. The Vietnamese Wikipedia's primary competitor is the Encyclopedic Dictionary of Vietnam, a state-funded encyclopedic dictionary also available online.

Reliability of Wikipedia Overview about the reliability of Wikipedia

The reliability of Wikipedia has frequently been questioned and often assessed. The reliability has been tested statistically, through comparative review, analysis of the historical patterns, and strengths and weaknesses inherent in the editing process unique to Wikipedia. Incidents of conflicted editing, and the use of Wikipedia for 'revenge editing' have attracted publicity.

Intellipedia online system for collaborative data sharing used by the United States Intelligence Community

Intellipedia is an online system for collaborative data sharing used by the United States Intelligence Community (IC). It was established as a pilot project in late 2005 and formally announced in April 2006. Intellipedia consists of three wikis running on the separate JWICS (Intellipedia-TS), SIPRNet (Intellipedia-S), and DNI-U (Intellipedia-U) networks. The levels of classification allowed for information on the three wikis are Top Secret Sensitive Compartmented Information, Secret (S), and Sensitive But Unclassified information, respectively. Each of the wikis is used by individuals with appropriate clearances from the 16 agencies of the US intelligence community and other national-security related organizations, including Combatant Commands and other federal departments. The wikis are not open to the public.

WikiPilipinas defunct Philippine website

WikiPilipinas was an online, free content website which bills itself as a combination "non-academic encyclopedia", web portal, directory and almanac for Philippine-based knowledge. Like Wikipedia, it contains various articles on Philippine-related topics. Unlike Wikipedia, many of the articles cover topics that would otherwise be deemed unencyclopedic by the stricter Wikipedia. The service for example, promotes the concept of original research and eschews the larger encyclopedia's neutral point-of-view principle.

RationalWiki Free-access wiki written to criticize religion, government, and pseudoscience

RationalWiki is a wiki whose stated goals are to analyze and refute pseudoscience and the anti-science movement, document "crank" ideas, explore conspiracy theories, authoritarianism, and fundamentalism, and analyze how these subjects are handled in the media. It was created in 2007 as a counterpoint to Conservapedia after an incident in which contributors attempting to edit Conservapedia were banned. In recent years, the website has explicitly moved its focus away from criticizing Conservapedia.

Wikimedia Foundation American non-profit charitable organization

The Wikimedia Foundation, Inc. is an American non-profit and charitable organization headquartered in San Francisco, California. It is mostly known for participating in the Wikimedia movement. It owns the internet domain names of many movement projects and hosts sites like Wikipedia. The foundation was founded in 2003 by Jimmy Wales as a way to fund Wikipedia and its sibling projects through non-profit means.

Larry Sanger American Internet project developer and Wikipedia co-founder

Lawrence Mark Sanger is an American internet project developer and co-founder of the internet encyclopedia Wikipedia, for which he coined the name and wrote much of its original governing policy. Sanger has worked on other online educational websites such as Nupedia, Citizendium, Everipedia, and the Encyclosphere.

Nupedia Former Web-based, free content encyclopedia

Nupedia was an English-language, web-based encyclopedia whose articles were written by volunteer contributors with appropriate subject matter expertise, reviewed by expert editors before publication, and licensed as free content. It was founded by Jimmy Wales and underwritten by Bomis, with Larry Sanger as editor-in-chief. Nupedia lasted from October 1999 until September 2003. It is mostly known today as the predecessor of Wikipedia, but Nupedia had a seven-step approval process to control content of articles before being posted, rather than live wiki-based updating. Nupedia was designed by committee, with experts to predefine the rules, and it approved only 21 articles in its first year, compared to Wikipedia posting 200 articles in the first month, and 18,000 in the first year. Unlike Wikipedia, Nupedia was not a wiki; it was instead characterized by an extensive peer-review process, designed to make its articles of a quality comparable to that of professional encyclopedias. Nupedia wanted scholars to volunteer content. Before it ceased operating, Nupedia produced 25 approved articles that had completed its review process, and 150 more articles were in progress. Jimmy Wales preferred Wikipedia's easier posting of articles, while Larry Sanger preferred the peer-reviewed approach used by Nupedia and later founded Citizendium in 2006 as an expert reviewed alternative to Wikipedia.

EcuRed Online encyclopedia from Cuba built on MediaWiki software

EcuRed is a Cuban online encyclopedia built on MediaWiki software. Launched on 13 December 2010, the site hosts over 206,000 reference articles, biographies and academic works.

Kiwix offline Wikipedia reader

Kiwix is a free and open-source offline web browser created by Emmanuel Engelhart and Renaud Gaudin in 2007. It was first launched to allow offline access to Wikipedia, but has since expanded to include other projects from the Wikimedia Foundation as well as public domain texts from Project Gutenberg. Available in more than 100 languages, Kiwix has been included in several high-profile projects, from smuggling operations in North Korea and encyclopedic access in Cuba to Google Impact Challenge's recipient Bibliothèques Sans Frontières.

Outline of Wikipedia Overview of and topical guide to Wikipedia

The following outline is provided as an overview of and topical guide to Wikipedia:

VisualEditor WYSIWYG rich-text editor MediaWiki extension

VisualEditor (VE) is a project to provide a "visual" or "WYSIWYG-like" online rich-text editor as a MediaWiki extension to Wikipedia, so it is not used yet in other MediaWiki projects. It was developed by the Wikimedia Foundation in partnership with Wikia. In July 2013, the beta was enabled by default, with the ability to opt-out, for and several of the largest Wikipedias.

Everipedia is a wiki-based online encyclopedia. Founded in December 2014, the site was launched in January 2015 as a fork of Wikipedia. It is owned by Everipedia, Inc., a for-profit company headquartered in Westwood, Los Angeles, California. As of October 2017, the majority of Everipedia pages are copies of Wikipedia articles.


  1. Anderson, Nate (2007-03-05). "Conservapedia hopes to "fix" Wikipedia's "liberal bias"" . Retrieved 2019-04-05.
  2. Stöcker, Christian (2007-03-06). "The Lord's Encyclopedia" . Retrieved 2019-06-08.
  3. 1 2 James, Andrea (12 June 2017). "Can Everipedia remake collaborative encyclopedias to be inclusive and enjoyable?". Boing Boing .
  4. 1 2 Lee, Elaine (22 March 2016). "Wharton dropout creates Wikipedia alternative alongside Rap Genius co-founder". The Daily Pennsylvanian .
  5. 1 2 In UK, can normally be accessed free via a local library
  6. Bruenig, Elizabeth (11 August 2017). "Why is millennial humor so weird?". Washington Post.
  7. Manning, Allee (31 December 2016). "The Darkest, Dankest Year In Memes". Vocativ.
  8. Stargate Wiki
  9. Charles Davis (May 30, 2018). "Sloppy Sourcing Plagues". The Newsweek Daily Beast Company . Retrieved June 24, 2019.
  10. Keeler, Mary; Johnson, Josh; Majumdar, Arun. "Crowdsourced Knowledge: Peril and Promise for Complex Knowledge Systems" (PDF). p. 4. Archived from the original (PDF) on April 13, 2015. Retrieved January 17, 2015.