A brief introduction to US history
Lesson on U.S. History from Khan Academy
Information on U.S. History by Encyclopedia Britannica's Student Center
Search query on U.S. History lessons from Khan Academy
National Geographic Education Resource Library
Videos on U.S. History includes westward expansion maps, battle maps, and more
PBS Learning media: U.S. History
Videos and more
Smithsonian's History Explorer
Videos, Artifacts, lessons and more
Youtube channel of videos on military history