Critical Mass Tickets: mapping and helping with the NYPD's ticketing craze.
Critical Mass Rides: the most comprehensive CM compendium in the world.
Critical Mass Phoenix
Wikipedia on Critical Mass
Visual Resistance: Art for the (Critical) Masses.
Charles Komanoff's Declaration on Critical Mass Traffic Disruptions
Assemble for Rights: Fighting for the First Amendment in NYC
National Lawyers Guild
New York Civil Liberties Union
People's Law Collective: anarchist legal support
Know Your Rights!: an invaluable legal and safety resource for bike messengers—and New York City bicyclists.
Time's Up! is a grassroots environmental organization.
Transportation Alternatives: NYC's advocate for walking, cycling, and environmentally sensible transportation
Right of Way: cars suck.
Recycle-a-Bicycle teaches hands-on bicycle maintenance and provides resources to kids in Brooklyn and Manhattan.
Cars-R-Coffins: Punk rock meets chain grease.
Bike The Hub: bicycle advocacy in Boston.
Bike Blog. New York's finest blog.
Ride of Silence: a silent slow-paced ride in honor of those who have been injured or killed while cycling.
Bicycle Blogs: a directory of blogs about bikes, by cyclists.
Reverend Billy at the Church of Stop Shopping.
The Rude Mechanical Orchestra: the soundtrack to the revolution since 2004.
Untitled Name: photos, bike and other.