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Answers.com delivers snapshot, multi-faceted definitions and explanations from credible, attributable reference sources on over one million topics in our database. Our editors take our content from over 100 encyclopedias, dictionaries, glossaries and atlases, carefully chosen for breadth and quality.

WhatIs.com is a knowledge exploration and self-education tool about information technology, especially about the Internet and computers. It contains over 4,500 individual encyclopedic definition/topics, a number of "Fast Reference" pages and learning tools. The topics contain about 12,000 hyperlinked cross-references between definition-topics and to other sites for further information. The site is constantly updated.

The Internet´s premiere free encyclopedia, provides users with more than 57,000 frequently updated articles from the Columbia Encyclopedia, Sixth Edition. Each article is enhanced with links to newspaper and magazine articles as well as pictures and maps - all provided by HighBeam Research.

Search our extensive archive of more than 35 million documents from over 3,000 sources -- a vast collection of articles from leading publications, updated daily and going back as far as 20 years. Save your searches, save articles and set up alerts to save time and increase your efficiency.