Some of our favorite links:
Science:
Robert Campbell's Homepage
NCBI: National Center for Biotechnology Information
Pedro's BioMolecular Research Tools
The RCSB Protein Data Bank
Programs:
CNS
MOLMOL
MolScript
NMRView
Perl
RasMol
X-PLOR
Search Engines:
AltaVista
Google
Metacrawler