http://www.nrel.gov/
NREL- National Renewable Energy Laboratory.

http://www.eere.energy.gov/
US DOE Energy Efficiency and Renewable Energy Home Page

http://www.dsireusa.org/
Database of State Incentives for Renewables and Efficiency (DSIRE)

 Partners

http://www.paradigmbiogas.com
Paradigm Biogas Company

 Renewable Energy Directories

http://www.targeto.com/business/energy-and-environment Targeto Directory

http://www.energyplanet.info/ Energy Planet

http://energy.sourceguides.com/ Source Guides