ChemExper Chemical Directory [IA][Direct] -
A site that allows anyone to search (free of any charge) for a chemical and find a supplier. It's also possible to add new products (entire catalogs for suppliers).
Chemket Database [IA][Direct] -
Organic literature database containing 45,000 references using Filemaker Pro format.
Rubin Group Research [IA][Direct] -
Information about current research happenings in the research group of prof. Yves F. Rubin at the University of California, Los Angeles.