Dundee
Prodrg Server - submit pdb file for residue or sketch (easier
than ccp4) and get back dictionaries for refmac, cns, shelx, O, and
gromacs minimized coordinates
HIC-UP at Uppsala - retrieve
cns, O dictionaries for any heterogroup in the pdb (watch out some
of these are unreliable.)
Cambridge Data Base - search small molecule structures, available
on kodaly