Wikipedia Wikipedia, the freeencyclopedia that anyone can edit.
http://www.wikipedia.org/
Wikipedia in English English-language version of Wikipedia, the onlineencyclopedia built and edited by users. Find encyclopedia entries on almost any topic, or click for a random ...
http://en.wikipedia.org/
EncyclopediaOnline - Yahoo! Education EncyclopediaOnline - Find facts and research reference information in this freeonline searchable encyclopedia with over 50,000 entries and more than 84,000 cross ...
Encyclopedia Britannica Explore the updated onlineencyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sites.
http://www.britannica.com/
The Free Dictionary Freeonline dictionary search, offering English, medical, legal, and computer dictionaries as well as a thesaurus, encyclopedia, and literature reference library.
http://www.thefreedictionary.com/
Reference.com Reference.com - Freeonlineencyclopedia and reference. Quickly research famous people, places, topics, and events from trusted sources.
http://www.reference.com/
Encyclopedia - Yahoo! Kids Find information on more than 50,000 topics in the free, online Yahoo! Kids Encyclopedia. Get help on your homework or just have fun learning.
http://kids.yahoo.com/reference/encyclopedia
1911 Encyclopedia Britannica Searchable online version of the 1911 Encyclopedia Britannica, containing 29 volumes and articles written by more than 1500 authors on topics from A to Z.
http://www.1911encyclopedia.org/
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