This U.S. Department of Energy portal is a one-stop-shop for information on research, development, and commercialization of energy-efficiency and renewable-energy technologies. The site is the only government-sponsored site targeted specifically for individual inventors and small businesses that are developing energy-related technologies. Includes comprehensive databases of resources, clear and informative discussions about the essential steps of development and commercialization, regularly updated news and events, and hundreds of links to related sites.