Renewable Fuels Association http://www.ethanolrfa.org

National Biodiesel Board http://www.biodiesel.org

U.S. Dept. of Energy Bioenergy Web page http://www.energy.gov/energysources/bioenergy.htm

U.S. Dept. of Energy Renewable Energy Programs http://www.eere.energy.gov

USDA Economic Research Service Bioenergy Briefing Room http://www.ers.usda.gov/Briefing/Bioenergy

USDA Office of Energy Policy and New Uses http://www.usda.gov/oce/energy