Bartleby

Containing nearly 51,000 entries (marshalling six and one-half million words on a vast range of topics), and with more than 80,000 hypertext cross-references, the current Sixth Edition is among the most complete and up-to-date encyclopediæ ever produced.

Britannica Online

Free articles include women's history, D-Day, the Harlem Renaissance, and the British Invasion of the Beatles plus other musical groups. There are also links to educational sites that have been reviewed.

Encyclopedia.Com

Encyclopedia.Com has over 17,000 short entries from the Concise Columbia Electronic Encyclopedia with premium services available from Electric Library for a fee.

Encyclopedia Mythica

This is an encyclopedia on mythology, folklore, legends, and more. It contains over 5100 definitions of gods and goddesses, supernatural beings and legendary creatures and monsters from all over the world.

Fact Monster

Students will find the on-line dictionary, encyclopedia, and homework help easy to use.

Greek Mythology

Listings and pictures for many of the well-known characters, objects, and places in Greek mythology.

Symbols.com

SYMBOLS.com contains more than 2,500 Western signs, arranged into 54 groups according to their graphic characteristics. In 1,600 articles their histories, uses, and meanings are thoroughly discussed. The signs range from ideograms carved in mammoth teeth by Cro-Magnon men, to hobo signs and subway graffiti.

World Book Encyclopedia

A web-based subscription service to the full 22 volumes of the World Book encyclopedia. A 30 day trial offer is provided.