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Encyclopedia.com – Online dictionary and encyclopedia with pictures, facts, and videos. Get information and homework help with millions of articles in our FREE, online library.

Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sites.

Understanding Early America through primary source documents-- scenes and portraits from original newspapers, maps and writings.

Ohio History Central is a growing, online digital encyclopedia dedicated the history of the State of Ohio.

U.S. History covers the development of the United States from the history of early exploration through modern times. American historical people are presented in the context of the development of the American nation on political, economic, and social...

World Atlas is an educational resource for world maps, atlases, and in-depth geography information. Teachers and students: free maps of Europe, USA, Canada, Florida, Caribbean Islands and much more. Worldatlas.com

Social Studies for Kids is a site with articles, subjects, and tons of links for all subjects of social studies, with a focus on what kids and their teachers/parents are learning.

Infoplease.com, a free, authoritative, and respected reference for Internet users, provides a comprehensive encyclopedia, almanac, atlas, dictionary, and thesaurus. Infoplease.com contains facts on all subjects including sports, entertainment, techno...

The Library of Congress. The Library of Congress is the nation

Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear audio pronunciations.