Starfall http://www.starfall.com
National Geographic for Kids http://www.nationalgeographic.com/kids/
Fun activities - by girls....for girls. http://www.missoandfriends.com/
http://bensguide.gpo.gov/benfranklin/index.html
http://www.primarygames.com
Math http://www.aplusmath.com
http://mrsalphabet.com/links.html
www.playkidsgames.com
www.coolmath4kids.com
www.ixl.com