Reference & Guides > Encyclopedias

Electric Library Personal Edition makes it possible to conduct real research over the Internet, using a deep database of reliable sources.

Electronic encyclopedia with its own content as well as over 10,000 links to the best reference sites on the Internet.

Browsable full text of the 11th edition.

Thousands of categorized entries of trivia - an invaluable resource for answer seekers.

Portal/concise encyclopedia offers fun activities for learning and exercising the mind. Daily articles introduce new topics in the arts, humanities, science, and technology, and provide links to related sites.

An online encyclopedia of wild animals with a lot of facts and photos.

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