Wikipedia
the free encyclopedia that anyone can edit
http://en.wikipedia.org/wiki/Main_Page
Type: Website
Status: Public
Source: Wikimedia Foundation, Inc.
Difficulty: Easy
Compatibility: N/A
Language: English
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A community-built encyclopedia with over 2,000,000 articles. Note that because articles can be freely edited, information on Wikipedia is not always accurate. As with other encyclopedias, however, it is sometimes a good starting point in the research process.
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