Wikipedia
Ourproject.org
OurProject.org (OP) is a web-based collaborative free content repository. It acts as a central location for the construction and maintenance of social/cultural/artistic projects, providing web space and tools, and focusing in free knowledge. It claims to extend the ideas and methodology of free software to social areas and free culture in general. Since September 2009, Ourproject is under the Comunes Association umbrella, and gave birth to the Kune collaborative social network for groups.