An excellent introduction to the hydroponic methodology from the Virginia Cooperative Extension. Website in Spanish and English. Offers articles, links and discussions pertaining to hydroponics. International directory of member hydroponic and indoor garden equipment merchants. Members include educators, researchers, vendors, commercial growers and hobbyists.
Visitors are welcome.
Site offers insight to the workings of a real hydroponic farm. A circular from the Extension at University of Illinois at Urbana-Champaign, offers a basic history and guide to hobby hydroponics. Includes information about hydroponic nutrients, maintenance, production, greenhouses, and marketing. Dedicated to supporting efforts to use simplified hydroponics to reduce global hunger and poverty. Offers classes and activities to support the education of simplified hydroponics, especially in developing nations.