The following sites were all compiled by Bristol palaeobiology students:
'Vertebrate Palaeontology' (1997) By Michael Benton. Chapman & Hall, London.
A university textbook, but very well illustrated and well written.
'Dinosaurs: A Global View' (1991) By Mike & Sylvia Czerkas.
A very comprehensive and extremely well illustrated book.
'Dinosaur!' (1992) By David Norman. Boxtree.
Good introductory text.