“Find out about permaculture ethics, principles, design approaches and useful information about over 200 practical solutions!”
Category: Wikis / General Knowledge
Of course there are others out there, but those seem to be the healthiest (activity, amount of articles).
It’s probably wise to concentrate the efforts to these projects.
Appropedia
Appropedia maintains a list of Permaculture Wikis and is also one of the most active Wikis in this space.
PermaWiki
Nearly 250 articles can be found on PermaWiki, which is hosted on Wikia
Wikipedia
The world’s largest encyclopedia also has some articles about Permaculture.