Boston Critical Mass - Bike advocacy organization; includes ride information, photos, and mailing list.
Chicago Critical Mass - Features news, events and information on the group's activities, press releases, annual art show, and contacts. Also, offers a photo gallery, flyers and FAQs.
Critical Mass Edmonton, 2000 to 2001 - An archival recreation of Critical Mass Edmonton content from 2000 through 2001. Among the resources are 'bLog entries, articles and photos.
Critical Mass Grand Rapids - Home of the Grand Rapids, Michigan, Critical Mass ride. Site features info, photos, and flyers. Also includes links to other Michigan CM sites.
Critical Mass in Bergen - Site no longer updated but has historical information on this groups efforts.
Critical Mass in Israel - Meets in Tel Aviv, Jerusalem, Haifa and Rehovot, and aims to promote alternatives to travel.
Critical Mass Victoria, BC - Critical Mass information pertaining to Victoria, British Columbia. Sparse information seems limited to general announcements.
Pedaling to Save the City - An examination of San Francisco's Critical Mass bicycling event in the context of the global fight against automobile dependency
Worldwide Critical Mass Hub - A guide to local Critical Mass sites in cities all over the world. Also includes links to worldwide CM, pro-bike, and anti-car sites.
