Sheldon Brown and Marty Goodman's collection of articles on bicycle commuting and lighting.

Posts blogs and news related to and in promotion of city bicycling.

Learn about cycling precautions and fun from this presentation by John Forester, a cycling transportation engineer.

Explore the positive effects of bicycling for daily transportation and recreation.

Currently available in Chicago, Cincinnati and Santa Monica, encouraging residents to commute by bike. Lists secure parking sites, and repair, rental, or bike sharing services for each city, as well as local events and suggested rides just for fun.

Information on bike rides, intense commutes, and bike anatomy. With news and photos.

Practical guide to safe and better biking as a form of commuting.

Campaigns for the elimination of oil dependence and wars by proposing an oil-free transportation system.

Discuss, share information, and interact on biker issues, updates, and ideas.

Lays out a guide for bicyclists to safely and conveniently traverse the city streets.

Get to know the basics of bicycling, the equipment needed, and the routes for safe bicycle commuting.

Contains messages, photos, journals, articles, news, and site links for biking commuters.

Coalition created to promote the use of bicycles as a form of transportation in America. Collaborates with the government to maximize federal funding for bicycling and sponsors programs to help towns and cities become bicycle-friendly.

David Madajian, a bicycle transportation advocate, explores the various aspects of city or utility bicycles in this plain text presentation.

A wiki for information about monthly rides to celebrate cycling and remind vehicle drivers that cyclists are allowed on the roads; held in cities around the world.

Maintains a register of bicycles set up as roadside memorials to cyclists killed in road accidents; includes background to the idea, and a worldwide listing.

Provides information related to the advocacy of preserving pedestrian-bicyclist rights to travel on public roads.

Promotes the cheapest, most healthful, environmentally friendly form of human transportation - bicycling.

Working to improve safety and encourage more children to safely walk and bicycle to school.

Get to know what a velomobile is and learn about its uses and presence in North America.

Provides background information and updates to this advocacy by cyclists for cyclists in existence since 1973.

With a mission to collect and ship second hand bicycles and parts to various places in Africa, this organization provides details about its operations, a photo gallery, videos, and other details about their work.

Compiles articles on bicycle choice and preference (for personal transportation).