| Site |
Language |
Description |
Access |
| Archimedes-lab.org |
English |
Edutainment |
Free |
| Baidu
Baike |
Chinese |
Collaborative online encyclopedia hosted by the major Chinese
search engine Baidu |
Free |
| Banglapedia |
Bangla, English |
General interest |
Free |
| The Canadian Encyclopedia |
English, French |
General Interest (original content of the hard copy Canadian
Encyclopedia) |
Free |
| Chinese Encyclopedia |
Chinese |
General interest |
Free |
| Citizendium |
English |
Wiki-based free encyclopedia
project spearheaded by Larry Sanger, co-founder of Wikipedia |
Free |
| Columbia Encyclopedia |
English |
General interest |
Free |
| Compton's Encyclopedia |
English |
General interest |
Free |
| Conservapedia |
English |
Semi-open wiki written from politically right-wing and Biblical literalist
perspectives. |
Free |
| Credo Reference |
English |
General interest and subject-specific encyclopedias |
Subscription |
| Crnogorska Enciklopedija |
Montenegrin |
General interest (hopes to encourage a Montenegrin language
Wikipedia) |
Free |
| Den Store Danske
Encyklopædi |
Danish |
General interest |
Free |
| Deu Sözlük |
Turkish |
General interest |
Free |
| Digital Universe |
English |
Collection of articles on educational, cultural, and scientific
topics |
Free |
| Diplopedia |
English |
US State Department
internal encyclopedic wiki, available for diplomats and overseas US
agents to use |
Access only through the State Department |
| Doosan Encyclopedia |
Korean |
General |
Free |
| Ekşi Sözlük |
Turkish |
General interest |
Free |
| Encarta |
English |
General interest |
Defunct |
| Encyclopædia Britannica |
English |
General interest |
Limited free access and features, subscription for full access |
| Encyclopædia Britannica
–1911 Edition |
English |
General interest |
Public domain: completely free access from several online
sources |
| Encyclopedia of China |
Chinese |
General interest |
Subscription |
| Encyklopedia Internautica |
Polish |
General interest |
Free |
| Enciclopedia
Libre |
Spanish |
Fork of the Spanish Wikipedia, using wiki software, released under the GFDL |
Free |
| Enciclopedia
României |
Romanian |
Collaborative encyclopedia about Romania. |
Free |
| Encyclopædia Universalis |
French |
General interest encyclopedia published by Encyclopedia
Britanica |
Subscription |
| Everything2 |
English |
General interest, users can submit articles on the topic of
essentially anything |
Free |
| FAQ |
English |
A collection of searchable FAQs |
Free |
| Gale Virtual Reference
Library |
English |
Database for search of source material of an academic
nature |
Subscription |
| GNUPedia |
English |
General interest articles are released under a GNU license |
Free |
| Grand Larousse
encyclopédique |
French |
General interest |
Free |
| Grolier Multimedia
Encyclopedia |
English |
Targeted at the younger researcher, it contains the text of the
American Academic
Encyclopedia |
Subscription |
| Holocaust Encyclopedia |
English, Arabic, Farsi, French, Spanish |
Holocaust related articles |
Free |
| Hudong |
Chinese |
General interest. China's largest wiki |
Free |
| Hutchinson Encyclopedia |
English |
General interest |
Free |
| Infoplease |
English |
General interest |
Free |
| Internetowa encyklopedia
PWN |
Polish |
General interest |
Free |
| Interpedia |
English |
General interest, the first site to propose a free encyclopedia
written by users. Now defunct. |
No longer exists |
| Kalb Encyclopedia |
Esperanto |
General interest. The first online Esperanto encyclopedia |
Free |
| Kdo byl
kdo |
Czech |
Biographies on notable Czech and Slovak people |
Free |
| Keyinpedia |
Chinese |
General interest |
Free |
| Knol |
English |
General interest |
Free |
| Kussmaul
Encyclopedia |
English |
General interest with emphasis on science and the arts. First
commercial online encyclopedia (1981-93). |
Subscription |
| Marefa |
Arabic |
General interest |
Free |
| Meyers Konversations-Lexikon 4. ed.
1888 - 1892 |
German |
General interest |
Free |
| Nationalencyklopedin |
Swedish |
General interest, the most comprehensive contemporary Swedish
language encyclopedia |
Subscription |
| New World
Encyclopedia |
English |
General interest |
Free |
| Nupedia |
English |
Combined with GNUpedia |
Free |
| Open
Site |
English |
Categorized community-built encyclopedia, inspired by the
Open Directory Project |
Free |
| Private Sözlük |
Turkish |
Collaborative hypertext Turkish dictionary and encyclopedia
site that shares a similar concept with Everything2 or H2G2 |
Free |
| Probert Encyclopaedia |
English |
General interest |
Free |
| Quid |
French |
General interest |
Free |
| Scholarpedia |
English |
Articles are written by scholars and peer-reviewed for
accuracy |
Free |
| Store norske leksikon |
Norwegian
(Bokmål) |
General interest |
Free |
| Susning.nu |
Swedish |
A Swedish language wiki |
Free |
| Từ điển Bách khoa toàn
thư Việt Nam |
Vietnamese |
General interest. State-sponsored encyclopedia. |
Free |
| Veropedia |
English, Dutch, Spanish |
Mirrors stable versions of selected English
Wikipedia articles |
Free |
| Vikidia |
French, Spanish |
Articles designed for children ages 8-13 |
Free |
| WIEM Encyklopedia |
Polish |
General interest |
Free |
| Wikipedia |
See list here |
Wiki-based free general
interest encyclopedia |
Free, Copyleft |
| WikiPilipinas |
English |
Based on the Wikipedia model, from the Philippines
point-of-view |
Free |
| World Book Encyclopedia |
English |
General interest |
Subscription |
| Site |
Language |
Description |
Access |
| Battlestar Wiki |
English, Simple English, German, Spanish, Turkish,
Malay, French, Chinese |
Battlestar Galactica-related
articles |
Free |
| Don Markstein's Toonopedia |
English |
Focuses on articles pertaining to print and animated
cartoons |
Free |
| H2G2 |
English |
Collection 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 |
| Lambiek |
English, Dutch |
Articles on comic strips and comic
artists |
Free |
| Lostpedia |
English, German, Spanish, French, Italian, Japanese, Dutch,
Polish, Portuguese, Russian, Chinese |
Contains articles pertaining to the hit drama Lost |
Free |
| Memory
Alpha |
English, Bulgarian, Chinese, Czech, Dutch, Esperanto, French,
German, Polish, Portuguese, Russian, Serbian, Spanish and
Swedish |
Articles about Star Trek |
Free |
| Project Galactic
Guide |
English |
Inspired by The Hitchhiker's Guide to
the Galaxy |
Free |
| The Rocklopedia Fakebandica |
English |
Articles on fake bands from popular entertainment |
Free |
| TvTropes |
English, German, Esperanto, Spanish, Frrench, Norsk, Suomi,
Svenska, Al Bhed, Quenya |
Articles related to the devices and conventions that a fiction
writer can reasonably rely on as being present in the audience
members' minds and expectations |
Free |
| 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 articles |
Free |
| WoWWiki |
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 articles |
Free |
| Site |
Language |
Description |
Access |
| Cut-the-knot |
English |
Mathematics related topics |
Free |
| Encyclopaedia of
Mathematics |
English |
Encompasses articles on the topic of mathematics |
Free |
| EqWorld |
English, Russian, German, French, Italian, Spanish |
Articles on mathematical
equations |
Free |
| MathWorld |
English |
Articles on a wide variety of math related topics |
Free |
| On-Line
Encyclopedia of Integer Sequences |
English |
Encyclopedia of number sequences (what is next term after
1,2,4,9,20,48,115, ..., say?) |
Free |
| PlanetMath |
English |
Math related topics and articles |
Free/GNU |
| The QED Project |
English |
A project to establish a "distributed, computerized repository
that rigorously represents all important, established mathematical
knowledge." |
Free |
| Site |
Language |
Description |
Access |
| Animal Diversity Web |
English |
Student wiki-type database at the University of Michigan of animal
natural history, distribution, classification, and conservation
biology. |
Free |
| ARKive |
English |
Visual and audio recordings of the world's species |
Free |
| Encyclopedia of Life |
English, French |
Seeks to categorize all 1.8 million known species on the
planet |
Free |
| Encyclopedia of Life
Sciences |
English |
Biology
related articles |
Subscription |
| Encyclopedia of Life
Support Systems |
English |
Articles about the natural and social
sciences |
Subscription |
| Erowid |
English |
Information about psychoactives
substances |
Free |
| FishBase |
English, Spanish, Portuguese, French, German,
Italian, Dutch, Chinese
(Simplified Han), Chinese
(Traditional Han), Bahasa Malay, Indonesian, Greek,
Swedish, Russian,
Farsi, Vietnamese, Thai, Lao, Hindi, Bangla |
Articles on fish species |
Free |
| Flora Europaea |
English |
Covers different plant species |
Free |
| Macroscopic Observatory |
English |
Covers Flora and
Fauna |
Free |
| MicrobeWiki |
English |
Covers microbes |
Free |
| Palaeos |
English |
Covers palaeontology |
Free |
| Wikispecies |
English |
Seeks to create a catalogue of all living things |
Free |
A list of 69 online medical wiki encyclopedias has been created
by David Rothman.[2]
