If you're writing a research paper about a topic related to biochemistry, consult this guide for suggestions on where to look for sources, how to evaluate scholarly vs. popular, and how to cite sources.
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: