Games for young children

http://www.4kids.org/
http://www.nickjr.com/
http://pbskids.org/
http://www.funbrain.com/kidscenter.html
http://www.jumpstart.com/

Math Websites

http://www.coolmath4kids.com/
http://www.kidsites.com/sites-edu/math.htm
http://www.mathplayground.com/index.html