Ibiblio[ http://ibiblio.org ]
A collaboration of the Center for the Public Domain and The University of North Carolina - Chapel Hill to provide public domain material, organised by subject and UDC (Universal Decimal Classification) including journals, ebooks and a special collection of linux programs and documentation.

Ncat.org[ http://ncat.org ]

Telus.net[ http://telus.net ]

Permaculture Research Institute[ http://permaculture.org.au ]
About permaculture and PRI's hands-on permaculture courses in ecological design, environmental restoration, appropriate technology and sustainable agriculture. New South Wales, Australia.

UK Permaculture Association[ http://permaculture.org.uk ]
Provides information about the association, courses, UK links and general permaculture information.

The Permaculture Activist[ http://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.

International Institute for Ecological Agriculture[ http://permaculture.com ]
Information, reading list, and links on permaculture and community-supported agriculture.

Permanent Publications[ http://permaculture.co.uk ]
Subscription information for Permaculture Magazine and a catalogue of available books, videos, and other resources focused on permaculture in the UK.

Central Rocky Mountain Permaculture Institute, Basalt, Color...[ http://permaculture.net ]
Permaculture training in the Colorado Rockies or the Bahamas. Also consulting.

Permaculture The Earth[ http://permaearth.org ]
Offers information about sustainable design and interactive forums for the discussion of topics related to permaculture.

La'akea Permaculture Gardens/Permaculture in Hawaii[ http://permaculture-hawaii.com ]
Offers month-long courses in permaculture design and deep ecology.

Permaculture Portal[ http://permacultureportal.com ]
Provides users with a helpful gateway to permaculture courses, events, services, and resources. The Portal is also the online home for the Bullocks' permaculture site in Orcas Island, Washington.

Klein Karoo Sustainable Drylands Permaculture Project[ http://berg-en-dal.co.za ]
Klein Karoo sustainable drylands permaculture project is a permaculture eco-village in South Africa

Permaculture International Ltd[ http://permacultureinternational.org ]
Publisher Permaculture International Journal, now a networking organization connecting permaculture groups and activists as well as offering an electronic newsletter.

David Holmgren[ http://holmgren.com.au ]
David Holmgren was the research student and co-originator with Bill Mollison, his research supervisor, of the permaculture concept.

Permaculture in New Zealand[ http://permaculture.org.nz ]
Information about the world of permaculture in New Zealand. Site also has event listings and a question and answer forum.

Permaculture Visions International[ http://permaculturevisions.com ]
Worldwide Permaculture School and support network with students in over 20 countries. Collection of writings and ideas about permaculture. Offers permaculture courses by distance learning.