AtomicZombie
   An inventor's exhibition of several species of choppers, tallbikes, and sensible rides.
   http://www.atomiczombie.com/

C.H.U.N.K. 666
   A postapocalyptic chopper bicycle club in Portland, Oregon.
   http://dclxvi.org/chunk

Chicago Freak Bike
   A record of human-powered creativity on the streets of Chicago.
   http://www.chicagofreakbike.org

Chopper Riding Urban Dwellers
   An exibition of the bikes and history of a San Francisco club.
   http://www.crud.org

Chopperation Go
   A gallery of Raleigh "Chopper" images.
   http://www.btinternet.com/~g_coventry/chopperation_go/go.htm

Cyclecide
   A San Francisco based bike rodeo and human powered carnival for the endangerment of all ages.
   http://www.cyclecide.com/

Dead Baby Bikes
   A Seattle club and underground bike shop with many regular rides, members, and rules.
   http://www.deadbabybikes.org/

Klunker League Now
   A collection of galleries and ride reports of "a bike kult".
   http://www.klunkerleaguenow.com/

La Nueva Vieja - Wooden Chopper Bike Project 2003
   A gallery of images of a wooden and steel chopper.
   http://bike.hokube.com

Subversive Choppers Urban Legion
   A Massachusetts based club with extensive records of their bikes, rides, and personnel statistics.
   http://www.scul.org