Directory: Top/Reference/Encyclopedias

Britannica Concise
Featuring 28,000 short articles.
http://concise.britannica.com/
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Bartleby.com
Includes the Columbia Encyclopedia, Sixth Edition, dictionaries, and thesauri.
http://www.bartleby.com/
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MSN Encarta Encyclopedia
Includes a world atlas, dictionary, thesaurus, multimedia collection, and homework tools.
http://encarta.msn.com/
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Hutchinson Encyclopedia
"A subset of the content (concise set) is provided for free, the access to the rest of the Hutchinson Encyclopedia requires subscription."
http://encyclopedia.farlex.com/
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Simple English Wikipedia
User-contributed online encyclopedia intended for people whose first language is not English.
http://simple.wikipedia.org/
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Information Please
Online dictionary, Columbia Encyclopedia, and almanac reference.
http://www.infoplease.com/
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Encyclopedia Smithsonian
Links to on-line Smithsonian resources and answers to frequently asked questions from A to Z.
http://www.si.edu/Encyclopedia_SI/
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Knol
Peer-reviewed encyclopedia from Google. Articles are written by named contributors.
http://knol.google.com/
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Wikipedia
A free encyclopedia with millions of articles contributed collaboratively using Wiki software, in dozens of languages.
http://wikipedia.org/
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