Utility Purchasing Management Group (UPMG)
http://www.upmg.com

Utility Supply Management Alliance (USMA)
http://www.usma.com

North American Association of Utility Distributors
http://www.naaud.com

National Assoc. of Electrical Distributors (NAED)
http://www.naed.org

Institute of Electrical and Electronics Engineers
http://www.ieee.org

Electric Energy Online
http://www.electricenergyonline.com

U.S. Energy Information Administration
http://www.eia.gov