Gale In Context: Science provides millions of full-text articles from national and global publications covering all disciplines of science including biology, chemistry, earth and environmental science, physics, and more.
ChemSpider is a free chemical structure database providing fast text and structure search access to over 100 million structures from hundreds of data sources.
Compendium of web resources about organic chemistry, including structural information, organic reactions, nomenclature, physical properties, and spectroscopic data.
One of the world's largest scientific organizations, the American Chemical Society is a professional organization for chemists and chemistry educators with a global community of members.