The Discovery Channel
The White House Page - Help students discover History through our past Presidents
The History Channel
Smithsonian
Smithsonian Learning Lab
PBS Learning Media KVIE and PBS have curated FREE, standards-aligned videos, interactives, lesson plans, and more.
The Library of Congress is the largest library in the world, with millions of books, recordings, photographs, newspapers, maps and manuscripts in its collections. The Library is the main research arm of the U.S. Congress and the home of the U.S. Copyright Office."
Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere. Videos and lectures!