Chemistry 

Provides users with easy access to chemical and physical property data for chemical species through the internet. From the National Institute of Standards and Technology.

A long list of scientific and engineering databases freely accessible from the National Institute of Standards and Technology (NIST).

An online reference text for college Chemistry.

Includes tutorials, quizzes, FAQs and much more. Developed for undergraduate Chemistry students at Frostburg State University.

A team of subject specialists from universities across the UK finds and reviews the very best web resources for study and research.

Big, international directory of Chemistry links, now with faceted searching.

Well-organized links to academic/commercial sites and chemistry resources, from the University of Liverpool. Part of the WWW Virtual Library.

Indiana University's site to help you find and learn how to use chemistry information resources on the Internet and elsewhere.

Various databases are available from Japan's National Institute of Advanced Industrial Science and Technology (AIST).

This free database lists more than 100,000 chemicals from an international range of suppliers and can be searched by molecular formulas, IUPAC names, common names, CAS numbers, catalogue numbers, substructures or physical characteristics. It contains IR spectra (via interactive applet) for various compounds. Data is submitted from various sources and should not be considered to be critically reviewed.

Tons of links and tools such as Calculators, Applets, Spreadsheets, Courses, Manuals, Handbooks, Simulations, Animations, Videos, etc.

Educational web pages from the Chemical Heritage Foundation.

Brief descriptions of Nobel prizewinners in Chemistry and their research--from 1901 to the present.