White House for Kids http://www.whitehouse.gov/kids/whlife/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
Fun activities - by girls....for girls. http://www.missoandfriends.com/
Reading Activities http://www.starfall.com
Math Fact Cafe (Can be used to make math worksheets) http://www.mathfactcafe.com
Fun Brain FunBrainhttp://www.funbrain.com
AAA Math: Great apprpriate math activities http://www.aaamath.com
Grade Appropriate Skills Across the Curriculum http://www.internet4classrooms.com
Famous Americans http://www.educationalsynthesis.org/famamer/