Runs a database of devices and inventors, related to energy. Peruse the subject index, pausing on anti-gravity, electromagnetics and cold fusion.

Organization devoted to the interests of cooperative electric utilities and their consumers, provides info on laws, events and services.

Read articles about new products and find an event calendar and subscription rates for this magazine serving the petroleum and gas industry.

Community and marketplace for the public works industry. Get the latest news on equipment and technology.