This page has a list of Social Studies websites.
50States
American Panorama
Archives
Ben's Guide
Crash Course Kids
Ducksters
Facing History
Fact Monster
Geogames
Geology.com
History for Kids
History Place
iCivics
Kid Citizen
LeapFrog
Learning for Justice
Learning Lab
Liberty Kids TV
On This Day
Primary Games
Public Instruction
Soft School
Star Atlas
Studies Weekly Online
Teaching History
The Great Lakes
The Great Wall of China
Time Kids
Weebly
World History Matters