Harcourt Books Online http://www.eharcourtschool.com/
National Geographic for Kids http://www.nationalgeographic.com/kids/
Starfall (Reading Skills) http://www.starfall.com
Between the Lions (Reading skills) http://pbskids.org/lions/games/
Scholastic (Games) http://www.scholastic.com/kids/
Harcourt Math http://www.harcourtschool.com/menus/math2004/math2004_gr1.html?154,40