iLabs - Inquiry Labs - Inquiry Labs are web-based tools designed to help you and your community communicate, collaborate, and develop a shared capacity for problem-solving. - http://ilabs.inquiry.uiuc.edu/
Kolabora - Independent forum about online collaboration, Web conferencing and real-time presentation technologies. Features reviews and news. - http://www.kolabora.com/
Open Collaboration Services Initiative - Fosters industry agreement around a set of open collaboration services standards, under the umbrella of the Object Management Group. Features articles, events, a message board and polls. - http://www.open-collaboration.org/
Technical Communication Collaboration - Portal features links to articles, software packages and organizations. - http://tc.eserver.org/dir/Collaboration
Building Community Collaboration and Consensus - Provides information on public participation, collaboration and consensus, with an emphasis on youth participation. Also provides information on open agenda conferences, grants, and fundraising. - http://www.communitycollaboration.net/