Oregon laws

Oregon Bicyclist's Manual (PDF)

Pedal Power book

Greater Eugene Area Riders (GEARs)
Lloyd District Transportation Management Association

National

Active Transportation Alliance (Chicago)
Alliance for Biking and Walking
America Bikes
Bikes Belong
League of American Bicyclists
National Center for Bicycling and Walking
National Complete Streets Coalition
Rails-to-Trails Conservancy
Safe Routes to School National Partnership
San Francisco Bicycle Coalition
Transportation Alternatives (New York City)
Transportation for America
Washington Area Bicycle Association (DC)

Transportation Policy

Victoria Transport Policy Institute: an excellent collection of resesarch papers on transportation issues

Surface Transportation Policy Project: the nation's leading transportation choices organization

Enhancements Clearinghouse: information from the U.S. Government on so-called "transportation enhancement" programs, including bicycling.

Bicycle Clubs, Racing Teams, Rides

Beaverton Bicycle Club
The Bike Gallery Bicycle Club
Mid-Valley Bicycle Club
Northwest Trail Alliance
ORBike.com
Oregon Bicycle Racing Association (OBRA)
OSU Cycling Club
PSU Cycling
Portland Wheelman Touring Club
Salem Bicycle Club
Santiam Spokes
Seattle Bike Tours
Siskiyou Velo Cycling Club
Slug Velo.com
Tacoma Wheelmen Bicycle Club
University of Oregon Cycling Club
Yaquina Wheels Bike Club