| Name |
Focus |
Notes |
Articles |
License |
| Wikipedia |
Encyclopedic |
Umbrella, multilingual MediaWiki project |
12,000,000+[citation needed] |
CC-BY-SA |
| English Wikipedia |
Encyclopedic |
Public access, most prominent English wiki |
2,820,000+[1] |
CC-BY-SA |
| Citizendium |
Encyclopedic |
Requires real names; guided by expert input while allowing edits from the general public |
10,800+[2] |
CC-by-sa 3.0 |
| Scholarpedia |
Encyclopedic |
Written exclusively by professionals focusing on their field of expertise; subject to peer review |
1,619 [3] |
Copyrighted |
| Knol |
Encyclopedic |
A wiki-like technology from Google |
100,000+[4] |
CC-by 3.0 |
| Wikibooks |
General - textbooks |
A wikimedia project |
115,200+[5] |
GFDL + other |
| NotePub |
General purpose |
An online notepad that allows for both public and private content. |
|
|
| Wikiversity |
General - Self-directed learning |
Supports free learning communities, projects, materials, and learners; a wikimedia project |
|
GFDL + other |
| wikiHow |
General instruction |
A how-to manual |
56,651+[6] |
CC-by-nc-sa 2.5 |
| WikiAnswers |
General knowledge |
Compiles answers to questions posed |
3,625,500+ Answers [7] |
Copyrighted |
| Everything2 |
Personal essays |
A wiki-like project for essays |
273,900+[8] |
Copyrighted |
| MeatballWiki |
Communities - Online communities |
|
4,900+ [9] |
Copyrighted |
| Wikitruth |
Social - Criticism of Wikipedia |
|
200+ [10] |
GFDL |
| Conservapedia |
Encyclopedia |
Information and articles are written from a Conservative Christian viewpoint aimed at correcting the perceived liberal bias of Wikipedia |
30,600+ [11] |
Copyrighted (free use) |
| Encyclopedia Dramatica |
Satire of Internet memes |
A satirical wiki |
7,400+[12] |
Fair use |
| Uncyclopedia |
Satire - Parody |
A satirical encyclopedia dedicated to parody |
134,000+ [13] |
CC-by-nc-sa 2.0 |
| Wikiquote |
Reference - Quotations |
A quote repository, a wikimedia project |
90,200+[14] |
GFDL |
| Wikisource |
Reference - Primary sources |
Dedicated to use on Wikipedia; a wikimedia project |
586,400+[15] |
GFDL |
| Wikimedia Commons |
Misc - Electronic media |
A repository of free electronic media; a wikimedia project |
|
CC-SA and other |
| Biographicon |
Misc - Biographies of people |
A directory of personal profiles |
|
GFDL |
| MyWikiBiz |
Misc - Business directory |
Allows people and enterprises to write about themselves |
|
|
| International Music Score Library Project |
Music |
A wiki library of public domain musical scores |
14,800+[16] |
GFDL |
| LyricWiki |
Music - Lyrics |
A listing of lyrics by album |
722,000+[17] |
unlicensed |
| Whole Wheat Radio |
Music - Indie music |
An online community radio station featuring independent music |
|
|
| Memory Alpha |
Fiction - Star Trek |
Contains canon-only material |
29,900+[18] |
CC-NC 2.5 |
| Wookieepedia |
Fiction - Star Wars |
Science fiction encyclopedia |
65,000+[citation needed] |
GFDL |
| A Million Penguins |
Fiction - collaboratively-written novel |
|
491[19] |
Copyrighted |
| Galaxiki |
Fictional galaxy |
Dedicated to the creation of a fictional galaxy |
|
|
| Lostpedia |
Fiction - Lost |
|
|
|
| WikiWikiWeb |
Computer programming, specifically design patterns |
World's oldest wiki (began circa 1995) |
33,886[20] |
GPL |
| Javapedia |
Computers - Java |
An online encyclopedia for developing Java |
|
|
| SWiK |
Computers - Open source software |
|
|
|
| GeoNames |
Places |
A geographical database that links specific names with unique features |
|
|
| City wiki |
Places |
An umbrella term for a variety of wikis dedicated to cities or other geographic regions |
|
|
| TheWikiz wiki |
Wiki Farms |
Offers free and premium wiki. Including FCK Editor, Semantic wiki, etc. Built on top of Mediawiki. |
|
|
| The Student Room |
Place - UK University and student life |
Offers UK university guides, revision notes, examples of university personal statements and information on student life and university courses |
|
|
| DavisWiki |
Place - Davis, California |
A city wiki dedicated solely to Davis; at one point the largest city wiki |
13,000+[21] |
CC-by 3.0 |
| Galbijim Wiki |
Place - South Korea |
Written by, and for an audience of South Korean expatriates |
|
|
| WikiPilipinas |
Place - The Philippines |
A combined non-academic encyclopedia, web portal, directory and almanac for Philippine-based knowledge |
|
|
| Travellerspoint |
Places - Travel |
A social networking site dedicated to sharing stories and recommendations about travel |
2,400+[22] |
CC-SA 3.0 |
| OpenStreetMap |
Places - Maps |
Uses GPS, aerial photography and other free sources of images to create a map of the world |
|
CC-SA 2.0 |
| WikiMapia |
Places - On-line map |
Combines Google Maps with a wiki system; currently supports 35 languages |
|
|
| Wikitravel |
Places - Travel |
A travel guide using wikimedia's software, but otherwise unconnected to the Wikimedia Foundation. 20 supported languages |
48,000+[23] |
CC-SA 1.0 |
| World66 |
Places - Travel |
A formerly Dutch company now owned by Internet Brands |
46,100+[24] |
CC-SA 1.0 |
| Baidu Baike |
Encyclopedic/Chinese |
A Chinese encyclopedia |
1,519,920[25] |
Copyrighted |
| WikiZnanie |
Encyclopedic/Russian |
A Russian language encyclopedia released under the FreeBSD Documentation License |
|
|
| Enciclopedia Libre Universal en Español |
Encyclopedic/Spanish |
A Spanish language fork of Wikipedia |
|
GFDL |
| Vikidia |
Encyclopedic/Spanish and French |
A Spanish and French language encyclopedia for children ages 8–13 |
|
GFDL |
| Susning.nu |
Encyclopedic/Swedish |
A Swedish language encyclopedia, which competes with Swedish Wikipedia |
63,400+[26] |
Copyrighted |
| Wikinews |
General - News |
Collaborative news service, a wikimedia project |
|
GFDL and other |
| GCPEDIA |
Government |
Internal Government of Canada Wiki |
|
|
| ZineWiki |
Social - Independent media |
A zine encyclopedia |
|
|
| WikiCandidate |
Fictional presidential campaign |
A virtual campaign for a fictional U.S. presidential candidate. A project of Cornell University. |
|
|
| Congresspedia |
Government - United States Congress |
A separately branded sub-section of SourceWatch |
|
GFDL |
| Diplopedia |
Government - Diplomacy |
Encyclopedia of the U.S. Department of State collecting items related to international relations and diplomacy |
|
|
| Jurispedia |
Government - Law |
A multi-lingual academic encyclopedia, including Arabic, Chinese, English, French, German and Spanish |
|
CC-NC |
| SourceWatch |
Social - Propaganda |
Formerly Disinfopedia, discusses propaganda and includes organizations that seek to influence public opinion |
|
GFDL |
| Wikileaks |
Social - Whistleblowers |
Allows people to leak documents anonymously |
|
- |
| Intellipedia |
Government - Intelligence |
Three non-accessible wikis running on networks that link the U.S. intelligence community |
|
|
| WikiTimeScale |
General - Human history |
An interactive timeline of history |
|
GFDL |
| OpenWetWare |
Science - Biology |
Promotes sharing and dissemination of knowledge related to biological research |
|
CC-SA |
| Wikispecies |
Science - Biology |
A directory of species; wikimedia project |
|
GFDL... |
| BOWiki |
Science - Gene function |
An ontology curation framework and gene function editor |
|
GFDL |
| SNPedia |
Science - Biology |
A database of research and information about single-nucleotide polymorphisms |
3,000+[27] |
CC-by-nc-sa 3.0 |
| Psychology wiki |
Science - Psychology |
Promotes sharing and dissemination of knowledge related to psychological research |
|
|
| Sensei's Library |
Misc - Go (game) |
|
18200+ |
OPL |
| PlanetMath |
Misc - Mathematics |
Free wiki-style mathematical encyclopedia |
|
GFDL |
| ATWiki |
Misc - Assistive technology |
Also addresses disabilities related to assistive technology |
|
|
| ShopWiki |
Misc - Products |
A shopping wiki and product comparison search engine featuring buying guides and shopping resources |
|
|
| RitchieWiki |
Reference - Construction Equipment |
An equipment wiki geared for the construction industry. Includes equipment specifications. Also available in French and Spanish. |
|
|
| Foodista.com |
Reference - Food and Cooking |
A Creative Commons structured wiki about foods, recipes, and other culinary information. |
|
CC-BY |
| Appropedia |
English |
Appropriate technology and sustainable development. |
|
|
| Ekopedia |
Multilingual - Encyclopedic |
Environmental sustainability. |
|
CC-SA 3.0 |
| Heroes Wiki |
Fiction - Heroes |
|
|
CC-NC-ND |
| Medpedia |
Encyclopedic Medical/health |
Requires real names; guided by medical expert input while allowing edits from the general public |
|
GFDL |
| WiserEarth |
Social and Environmental Responsibility |
|
|
|
| Catawiki |
Catalogues |
Dutch language only |
200,000+ |
|
| Collegewikis |
Information exchange among college students |
|
|
| AboutUs.org |
Internet directory |
originally with MediaWiki software, but now largely with Ruby on Rails |
14,000,000+ |
GFDL and CC-BY-SA |
