White House for Kids http://www.whitehouse.gov/kids/whlife/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
AplusMath (Math Practice for Kids) http://www.aplusmath.com
Ben's Guide to U.S. Government for Kids http://bensguide.gpo.gov/
Noun Dunk - (Practice Basketball with Common and Proper Nouns) http://www.harcourtschool.com/activity/basketball/index.html
Social Studies Resource http://sfsocialstudies.com/