The Food Forest http://www.users.bigpond.com/brookman/
A 40 acre permaculture demonstration, and production property at Gawler South Australia. Offers consulting services, learning courses, information, and tours.
The Permaculture Activist http://www.permacultureactivist.net/
North American permaculture periodical, providing a current listing of upcoming permaculture design courses, and offering articles on permaculture design, edible landscaping, bioregionalism, aquaculture, natural building, renewable energy.
Weeds or Wild Nature? http://www.holmgren.com.au/html/Writings/weeds.html
1997 article by David Holmgren, one of the co-founders of the permaculture movement, discusses the evolution of ideas related to environmentally progressive responses to weeds and pests, with particular focus on Australia.