Main FDA website
http://www.fda.gov/

FDA Basics for Industry
http://www.fda.gov/ForIndustry/FDABasicsforIndustry/default.htm

Office of Medical Products and Tobacco Organization Chart
http://www.fda.gov/AboutFDA/CentersOffices/OrganizationCharts/ucm384984.htm

Center for Drug Evaluation and Research (CDER) organization chart and CDER drug review centers
http://www.fda.gov/AboutFDA/CentersOffices/OrganizationCharts/ucm403687.htm

Center for Biologics Evaluation and Research (CBER) Organization Chart
http://www.fda.gov/AboutFDA/CentersOffices/OrganizationCharts/ucm350385.htm

CDRH Organization Chart
http://www.fda.gov/AboutFDA/CentersOffices/OrganizationCharts/ucm347835.htm