Online Encyclopedias

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Columbia Encyclopedia

http://www.bartleby.com/65/

Free Version of Encycolpedia Britannica

http://www.britannica.com/

Encyclopedia.com

http://www.encyclopedia.com/

Encarta

http://encarta.msn.com/

Infoplease

http://www.infoplease.com/

Encyclopedia Smithsonian

http://www.si.edu/resource/faq/