1.  http://www.cogcon.com/gamegoo/intro1.html (Several very good language arts games for K-2)

2.  http://www.bbc.co.uk/education/laac/ (Interactive educational games and activities for children, ages 4-8 years old.  Music, story, word and number activities)

3.  http://www.aplusmath.com/Games/Concentration/

4.  http://www.primarygames.com/see-n-spell/see-n-spell.htm

5.  http://www.primarygames.com/states/start.htm

6.  http://aplusmath.com/cgi-bin/games/subpicture

7.  http://aplusmath.com/games/picture/SubPicture.html

8.  http://www.primarygames.com/curriculum/index.htm

9.  http://www.harcourtschool.com/menus/math_advantage.html

10.  http://www.aaamath.com