This is a list of well-known online encyclopedias that are accessible or formerly accessible on the Internet.
The largest online encyclopedias are general reference works, though there are also many specialized ones. Some online encyclopedias are editions of a print encyclopedia, such as Encyclopædia Britannica, whereas others have always existed online, such as Wikipedia.
General reference
Biography
Antiquities, arts, and literature
Regional interest
US-specific
Pop culture and fiction
Mathematics
Media
Philosophy
Politics, law, and history
Religion and theology
Science and technology
Life sciences
Medical
See also
Chinese encyclopedia
List of academic databases and search engines
List of blogs
List of Danish online encyclopedic resources
List of encyclopedias by branch of knowledge
List of online databases
List of online dictionaries
List of multilingual MediaWiki sites
List of wikis
List of Wikipedias
References
External links
"Encyclopedic Knowledge, Then vs. Now", The New York Times, May 3, 2009