• IUPAC chemical nomenclature data base: http://www.chem.qmw.ac.uk/iupac/
• IUPAC Nomenclature http://www.acdlabs.com/iupac/nomenclature/
• IUBMB biochemical nomenclature data base: http://www.chem.qmw.ac.uk/iubmb/
• Liquid Crystal database at Hamburg Uni. http://liqcryst.chemie.uni-hamburg.de/lolas-www/main.html
• Rasmol .pdb files (searchable database) http://www.sci.ouc.bc.ca/chem/molecule/molecule.html
• The Smell Database http://mc2.cchem.berkeley.edu/Smells/index.html
• Klotho Compound List http://www.ibc.wustl.edu/moirai/klotho/compound_list.html
• Find a compound http://chemfinder.camsoft.com/
• Pigments Library http://pw1.netcom.com/~bcb56/1500.htm
• Perfumery http://www.execpc.com/~goodscnt/
• Molecules of the Month - University of Oxford

The Web is very dilute in information. As a resource for students therefore, the tasks and objectives set must be especially specific. Web databases are quick and easy to use and there is less chance of 'red-herrings' as happen often in a wider web-search.

Full databases of Chemical sites can be found at:

• Mark Winter's ChemDex at Sheffield University
• The University of Liverpool Department of Chemistry's links for chemists
• Rolf Claessen's Chemistry Index

Other databases to try:

• ChemFinder Searching
• Material Safety Data Sheet Index
• National Institute of Standards and Technology - Physical Reference Data
• Molecules from Chemistry at Okanagan Universi...
• Poisonous Plant Database (PLANTOX)
• Search through chemistry related journals for key words