Links
A tiny list at the moment, these are the three web pages I most referenced while doing a research paper a while back.
The Dinosauria: UCMP's
Tyrannosaurus Rex Expo
The Unnatural Museum: The UnMuseum, Tyrannosaurus
Rex
Enchanted Learning: Tyrannosaurus Rex
And these are a few random links
Discovery Online -- Not just Dinosaur stuff here, but most of it's interesting.
"Dino Don's Webpage"
Dinosaur Art
Offical Page for "Dinotopia"