www.chem-bg.com - “The Life Science portal”
ChemSpider - a free chemical structure database (owned by the RCS) providing fast text and structure search access to over 28 million structures from hundreds of data sources
Chemseer - an online resource in the field of chemical science in universities and industry.
NIST Chemistry WebBook
Links for Chemists
Organic Chemistry Resources - Organic Chemistry Resources Worldwide
The Division of Organic Chemistry - at ACS