Wisconsin:
Sustainability on Stilts: http://sustainabilityonstilts.ning.com/
What is Permaculture? by Michael Fields Agriculture Institute including resource links: http://michaelfields.org/land-management/permaculture/
Forest Agriculture Enterprises: http://www.forestag.com
Illinois:
Midwest Permaculture: http://www.midwestpermaculture.com
The Resiliency Institute: http://www.theresiliencyinstitute.net/
Elsewhere:
Permaculture Research Institute Cold Climate, Minnesota: http://www.pricoldclimate.org/
The Land Institute, Kansas: http://www.landinstitute.org/
The Permaculture Research Institute of Australia: http://permaculturenews.org/
Permaculture Institute, New Mexico: http://www.permaculture.org/
Central Rocky Mountain Permaculture Institute, Colorado: http://www.crmpi.org
Great Lakes Permaculture, Ohio: http://greatlakespermaculture.com/blog/
Great Lakes Permaculture Network, Michigan: http://www.greatlakespermaculture.org/
Finger Lakes Permaculture Institute, New York: http://www.fingerlakespermaculture.org/