Efficient Networks, Inc.
Designs, develops, manufactures and sells high-speed digital subscriber line customer premises equipment for the broadband access market. (Nasdaq: EFNT). http://www.efficient.com/
American Council for an Energy Efficient Economy
U.S. nonprofit that sponsors a large international conference every two years called the "Summer Study on Energy Efficiency in Buildings". Publishes reports on technical and policy issues relating to energy efficiency. http://www.aceee.org/
Energy Efficient Windows
Information on the benefits of energy-efficient windows, descriptions of how they work, and recommendations for their selection and use. Sponsored by the Efficient Windows Collaborative (EWC), U.S. Department of Energy Windows and Glazings Program, and industry members. http://www.efficientwindows.org/