Playgreen is aiming to be the place on the web for green information. It uses PMWiki, and is founded on the idea that the collective knowledge is better than what we each know individually, and thus each have something to contribute to the collective consciousness. You can check out recently added articles, a list of good practices for you to do to become more green, tidbits of green knowledge, a community wish list as to what they hope to find on the site, and more there for your viewing and editing pleasure.