Alphabet History
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Antiques Roadshow

Architecture Design Images History, 3D Models and More
Archiving Early America
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Colonial Hall
Eyewitness History Though the Eyes of Those Who Lived It
Grolier's Online: From Revolution to Reconstruction: Presidents

Harcourt Brace Social Studies
Have Fun With History
Historical Atlas of the Mediterranean 
HistoryBuff.com
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History For Kids

History Link
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HyperHistory
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Native American History Archive
On The Trail Magazine

On This Day.com

PBS: History

PBS: Way Back: American History for Kids

People's Century

Reaching Out: The Evolution of Communication

Scholastic: History Mystery
Smithsonian: National Museum of American History

Social Studies for Kids
The People History 

USHistory.org

You Be the Historian