For the Younger Crowd

Count us in Games - math games

Starfall - great, free site with interactive books & free printables to teach reading

Seussville - Dr Seuss, games, biography, event dates, and more

Fisher Price - games & activities

Kratts' Creatures - from PBS

Thomas & Friends

Berenstain Bears - official site

Literactive - another site for teaching reading, it's free but you have to register

Berenstain Bears - from PBS, this is different from their official site

Between the Lions - From PBS

Bob the Builder

Super Why - from PBS

Curious George - from PBS

It's a Big Big World - from PBS

Dragon Tales - from PBS