Amino Acids:

Nice Look at Amino Acids (John Kyrk .com)

*Groupings*

Chemical Structure

Wickipedia

UGa

UK Amino Acid Web Page

Amino Acid Information: Hydorphobicity Scale, Solubility/Crystalline Density pI, Volume and Area pKa

Indiana Sate, Arizona, bioscience.org

Optical photographs of amino acid crystals (more or less a waste of time but pretty and might give you a feel for what amino acids are)