Oceania
Critical Mass, Adelaide, Australia, Critical Mass, Brisbane, Australia, Critical Mass, Parramatta, Sydney, Australia, Critical Mass, Sydney, Australia
Boston Critical Mass
Bike advocacy organization; includes ride information, photos, and mailing list.
Central London Critical Mass
Site specializes in Central London (UK) Critical Mass bike rides. Contains pictures, news and links.
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 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Site no longer updated but has historical information on this groups efforts.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.
Lansing, Michigan, Critical Mass
Contains information about upcoming Lansing area rides. There is a map of where to meet as well as a basic FAQ and a mailing-list.
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
St. Louis Critical Mass
Monthly free bike ride to educate the auto-bound to the simplicity of travel by bicycle and to draw attention to the rights of urban cyclists.
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.