About Chemistry
News articles, periodic tables, educational resources, newsletters, and annotated links.
http://chemistry.about.com/science/chemistry/index.htm

Chemical Forums
Discussion boards for all areas of chemistry, at levels ranging from high school to graduate school and practicing chemists. Site also includes web directory, periodic table, articles, and reference tables.
http://www.chemicalforums.com/

CHEMINFO: Chemical Information Sources from Indiana University
Site designed to help people find and learn how to use chemical information resources on the Internet and elsewhere. Email discussion list available.
http://www.indiana.edu/~cheminfo/

Molecule of the Day
Weblog explains the relationship between chemistry and real life to non-chemists.
http://scienceblogs.com/moleculeoftheday/

Qvm Type 33 Gate Valve
Petroparts. Net supplies the most comprehensive valves for the petrochemical industry.
http://www.petroparts.net/

Sci.Chem FAQ
A fairly comprehensive list of frequently asked questions and answers about chemistry and related topics.
http://www.faqs.org/faqs/sci/chem-faq/part1/

Tiw Valve
Global valves supplies the most comprehensive valves for the petrochemical industry.
http://www.globalvalves.net/