Encyclopaedia Brittanica - Free statewide access is provided through the Alabama Virtual Library. If you are asked for a user ID and password, please contact the library for assistance.

Encyclopedia of Alabama - online reference resource for Alabama history, culture, geography and natural environment (content includes video, audio, & graphics)

Encyclopedia.com from HighBeam Research - Provides access to The Columbia Encyclopedia (Sixth Edition). All entries are preceeded by sponsored ads.

Encyclopaedia Britannica (Eleventh Edition, 1911) from LovetoKnow - One of the most comprehensive encyclopedias ever written. Find historical articles on 40,000 topics. Use this free encyclopedia to give historical depth to your research, but search the Brittanica site for current information.

MedlinePlus Medical Encyclopedia from Adams, the National Library of Medicine, and the National Institutes of Health - Illustrated encyclopedia of more than 4,000 articles on diseases, tests, symptoms, injuries, and surgeries.

Symbols.com from HME Media - An online encyclopedia of graphic symbols including their histories, uses, and meaning.