Department of Energy: http://www.doe.gov
American Institute of Aeronautics and Astronautics: http://www.aiaa.org
Small Business Administration SBIR/STTR information: http://www.sba.gov/SBIR/
Defense Technical Information Center: http://www.dtic.mil/dtic/sbir/
DOD SBIR/STTR Solicitations: http://www.dodsbir.net/solicitation/
Federal Business Opportunities: http://fedbizopps.gov
Federal Acquisition Regulations: http://acquisition.gov/far/