This website will help you find some of the the best library databases, search tools, and reference sources for Biochemisty.
Department of Biology at Middlebury College http://www.middlebury.edu/academics/biology
Department of Chemisty at Middlebury College http://www.middlebury.edu/academics/chemistry
Middlebury College Libraries http://www.middlebury.edu/academics/lib
These are widely-used research databases in biochemisty, biology, & chemistry: