is a fantastic informative wiki for everything under the sun that could be considered "green". It's an "appropriate technology wiki" filled with user created content, like Wikipedia, that focuses on collective solutions in "sustainability, poverty reduction and international development through the use of appropriate technology and the sharing of wisdom and project information".
What exactly is "appropriate technology"? It's the technology that is suitable to the environmental, cultural and economic situation it is designed for. Usually, this refers to technologies appropriate for the entire world (including developing nations) and for the best technology for a given situation.
This article appears in Jan 20-26, 2010.