Encyclopedia.com - Encyclopedia.com provides quick and easy access to thousands of articles with useful information on almost any subject.
Wikipedia - the free encyclopedia with access to over 50,000 articles online
Library Spot - find encyclopedias, maps, online libraries, dictionaries and more
Infoplease - free online resource with encyclopedia, atlas and dictionary plus more
Columbia Encyclopedia - sixth edition contains over 50,000 entries
Research-It! - Search, look up or translate just about anything in one place.
Re-Quest - Comprehensive online library of internet and reference resources.
HealthAtoZ.com - Medical and health care resources for patients, their families, friends, health care workers and physicians.
Refdesk - One of the best sites for information and facts on a wide range of subjects.
World Factbook - Information and facts about countries of the world, including maps, area size, geographic co-ordinates, population size, natural resources and more.