Encyclopedias

Columbia Encyclopedia Provides users with a simple, one-stop research site, composed of  articles from the Columbia Encyclopedia, Sixth Edition. The site links more than 50,000 diverse articles to the resources available on Infonautics' online research service. A free Internet-based encyclopedia, but does include commercial advertising.

Infoplease Combining the contents of an encyclopedia, a dictionary, an atlas and several up-to-the minute almanacs loaded with statistics, facts, and historical records, Infoplease places the resources of an entire reference information center at your fingertips.

L1 Kids Encyclopedia (Homework Helper) If the other encyclopedias are over your head, you may want to give this one a try, designed for the younger student.

Microsoft Encarta Encyclopedia Browse encyclopedia articles, images, features, activities and related Web links that  have been organized by category. Please note that this is the "basic" commercial version--not all links or sources will be available unless you purchase access to the complete version.