White House for Kids http://www.whitehouse.gov/kids/whlife/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
StarFall http://www.starfall.com
FunBrain http://www.funbrain.com
Math Games http://www.apples4theteacher.com/measure.html
Discovery School http://school.discovery.com
Primary Games http://www.primarygames.com
Math and Reading Help http://math-and-reading-help-for-kids.org/kids_games/index.html
Time4Learning http://www.time4learning.com/elementary-games.shtml
AOL Homework Help http://homeworkhelp.aol.com/learninggames
ABCYa! http://www.abcya.com/
teAch-nology.com http://www.teach-nology.com/web_tools/games/
fun facts and features, homework help http://www.factmonster.com
Study Island http://www.studyisland.com
Crosswords and other puzzles http://www.kidcrosswords.com/
FunSchool online games http://funschool.kaboose.com
GameQuarium http://www.gamequarium.com
ToonUniversity http://www.toonuniversity.com
U.S. Mint Information http://www.usmint.gov/kids/
More math games http://www.primaryworksheets.co.uk/