The Jewish Encyclopedia For Kids is made as an online educational site for children who are interested in Jewish facts and history.

Reference site allows you to search over the Columbia Encyclopedia, the Encyclopedia of World History, fact books, thesauri, quotes, and more.

Collection of articles about famous women written by third and fourth grade students.

Comprehensive online encyclopedia and database of over 51,000 entries.

Provides complete text of Encyclopaedia Britannica with search capabilities, related links, and multimedia enhancements. Free trial available.

Links to online Smithsonian resources and answers to frequently asked questions from A to Z.

Free resource offers more than 50,000 concise articles.

EncycloZine is a concise illustrated encyclopedic portal covering a wide range of topics in the arts, humanities, sciences, and technology. It also features games, puzzles, quizzes, and a multimedia gallery.

A history of U.S. presidents, the presidency, politics and related subjects. Includes biographies for every president.

Articles explain how hundreds of things work, from elements of the human body to space-age technology.

A guide to more than musical 140 instruments from all parts of the world. Includes photographs and descriptions.

Online home of the Encarta encyclopedia, dictionary, thesaurus, multimedia collection, and homework tools.

A volunteer-run open content encyclopedia, inspired by the Open Directory Project.

British online encyclopedia focuses on historical topics. Articles are geared toward students.

Contains descriptions and definitions of more than 14,000 computer terms and concepts.

Find articles on animal health care topics ranging from behavior and preventive care to common and not-so-common diseases.

Free volunteer-edited encyclopedia with over 200,000 articles.

An online encyclopedia with more than 400,000 pages of content.

Offers in-depth information on a variety of subjects and educational activities for children.