Here's a city you may not have visited yet. "HVAC-City was formed by Air Conditioning Contractors of America (ACCA) and Wrightsoft Corp. to provide an easy way for HVAC companies to have a presence on the Internet.
Another site to check out is GridWatch -- for the power industry. The website (www.gridwatch. com) is divided into three main sections: power generation, power markets, and transmission and distribution.