Chemistry
ChemFinder
Search for information on chemical compounds. Provides melting point, boiling point, evaporation rate, flash point, solubility and 2-D chemical structures for thousands of compounds. Excellent search engine helps you find other web sites with information on your query.
http://chemfinder.cambridgesoft.com/
Sheffield ChemDex
Huge, briefly annotated directory of chemistry resources around the world. Information organized by specific sub-field as well as geographically, by Institution, company or government.
http://www.chemdex.org/
WebElements
An excellent site for information on elements and compounds. Periodic table of the chemical elements, with an in-depth look at each one. Includes detailed information for each element--e.g., history, uses, crystal structure, properties, abundances.
http://www.webelements.com/
CHEMINFO
Maintained by the University of Indiana, this site will help you find and learn how to use chemistry information resources on the Internet and elsewhere. Lots of links.
http://www.indiana.edu/~cheminfo/ca_gcisd.html
Chemistry.org
http://www.chemcenter.org/portal/Chemistry
The Nutrition source
A website maintained by the Department of Nutrition at the Harvard School of Public Health.
http://www.hsph.harvard.edu/nutritionsource
