| 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 Detroit: Information is available regarding upcoming rides in Detroit with links to a companion mailing-list and external links on the subject of Critical Mass. |
| 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| Critical Mass in Bergen: Site no longer updated but has historical information on this groups efforts.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. |
| Critical-mass.org: Cycling advocacy list of sites. |
| Dallas Critical Mass: Dallas Critical Mass organizes a monthly bicycle ride to celebrate cycling and to assert cyclists' right to the road. An eMail list, discussion board and photo gallery are among the resources offered. |
| 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: Comprehensive guide to local Critical Mass sites in cities all over the world. Also includes links to worldwide CM, pro-bike, and anti-car sites. |
| Yahoo! Groups: Critical Mass: Message board for Critical Mass issues around the world. |
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