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Reference Search Tools

Last updated Apr. 24, 2008.

Selected, free searchable versions of standard English-language reference tools.

Dictionaries
Merriam-Webster
InfoPlease Dictionary (Random House Webster's Unabridged?)
American Heritage Dictionary
yourDictionary Specialty Dictionaries (for links to more)

Encyclopedias

Britannica  (fee based), but articles from Britannica Concise Encyclopedia are free.
Columbia Encyclopedia 6th ed. at Bartleby or Yahoo!
Encarta (Full version for CD owners only)

Collections
These include a variety of reference sources
 
Bartleby Reference (dozens of very old and very new sources)

 
InfoPlease (almanacs, dictionary, encyclopedia, biographies)
Information Please infoplease.com
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For more information on some of these tools, see the following articles