Free-DC is a community which attempts to provide a relaxed, helpful environment, teams, and stats for people interested in participating in distributed computing projects. http://www.free-dc.org/
Team for distributed computing enthusiasts living in or hailing from the Province of British Columbia, Canada, using the BOINC client. http://victoria.tc.ca/%7euq016/bcboinc/
UK based distributed computing team whose members participate in various distributed projects such as RC5-64, Folding@Home, seti@home and the StephenBrooks.org muon project. http://www.teamlinux.org.uk/