Online books in animated style.
BrainPopExcellent resource for educational videos.
TumbleBooksGreat resource for online books.
CoolMathOnline games geared around math.
FunBrainLots of excellent online educational games.
ABCya - Educaional GamesGreat site full of online educational games.
TumbleBooksExcellent source of reading material for elementary school children.