CoHousing Company: McCamant & Durrett Architects, 
Specializes in design and development consulting for community housing, participatory and sustainable design.
http://www.cohousingco.com/The Cohousing Association of the United States
Includes a list of cohousing communities, resources, classified ads, event listings, and a list serve, sponsored by North American non-profit.
http://www.cohousing.org
Cohousing Resources
Contains extensive resources for getting a project built.
http://www.cohousingresources.com/
Canadian Cohousing Network
Resource for cohousing communities in Canada, working together to create healthy sustainable communities.
http://www.cohousing.ca/
Wonderland Hill Cohousing Development
Wonderland Hill Development Company is the largest cohousing developer in the United States.
http://www.whdc.com
Co-Housing - An Overview
A brief international history of the cohousing movement.
http://www.pcdf.org/meadows/cohousing.htm
