Links:
The American Council for an Energy-Efficient Economy is a nonprofit, 501(c)(3) organization dedicated to advancing energy efficiency as a means of promoting both economic prosperity and environmental protection.
www.ashrae.org American Society of Heating Refrigerating and Air Conditioning Engineers (ASHRAE): The American Society of Heating, Refrigerating and Air-Conditioning Engineers advances technology to serve humanity and promote a sustainable world. Membership is open to any person associated with the field.

The Alliance to Save Energy promotes energy efficiency worldwide to achieve a healthier economy, a cleaner environment, and greater energy security

Association of Energy Engineers (AEE): The Association of Energy Engineers (AEE) is a nonprofit professional society of 8,500 members in 77 countries. The mission of AEE is “ to promote the scientific and educational interests of those engaged in the energy industry and to foster action for Sustainable Development.”

www.betterbricks.com/ BetterBricks is a non-profit effort created to help commercial building professionals achieve sustainable high performance buildings. The emphasis is on energy effective design and construction. Tools, Guidelines and Case Studies.

BOMA International is a primary source of information on office building development, leasing, building operating costs, energy consumption patterns, local and national building codes, legislation, occupancy statistics and technological developments

BuildingGreen.com, the home of the GreenSpec green product directory

US Government Energy Information Administration; Official energy statistics from the U.S. Government including Energy Use Intensity information.