The Permaculture subreddit  is a small, but active community.
Permaculture Forums on AppropediaEdit
Permaculture Forums members who may wish to share a page with their community, in a public way, are free to use Appropedia. Pages specifically related to the PF community may be made subpages of this one, using a slash "/". E.g. if you wanted to share links related to a forum discussion on composting, you could start the page Permaculture Forums/composting or Permaculture Forums/composting links.