The Appropedia wiki has been there for a while, but Chris Watkins has made a special effort to reorganize the content for easier usage through a portal, that focuses on the ‘technological solutions’ per se, rather than lifestyles or practices.
Here’s how Chris explains it:
“One challenge with making an Appropriate technology portal on Appropedia is that so much of our content is about appropriate technology. Can’t have a portal about everything – that’s what the front page is for. But recently I bit the bullet, did some categorization, and it was actually a lot clearer than I expected. The technology is different from, say Green living which is more about lifestyle and practices; Principles of development which is one of the categories that deals with the “software” of changing the world; Organizations and Programs, just to name a few.”