This website will help you find some of the the best library databases, search tools, and reference sources for Chemisty.
Department of Chemistry at Middlebury College http://www.middlebury.edu/academics/chem
Explore science and mathematics at Middlebury College http://www.middlebury.edu/science
Middlebury College Libraries http://www.middlebury.edu/academics/lib
These are widely-used research databases in chemistry:
Help documents for SciFinder (Web version):