Bicycle Helmet Safety Institute - - Information on bicycle helmets, standards, and cycling laws; the helmet advocacy program of the Washington (DC) Area Bicyclist Association.
Bicycle Law.com - - Legal advice for injured cyclists hurt in traffic accidents or by defective cycling products. Founder Bob Mionske is a cyclist and attorney, and a two time Olympian and former US National Champion.
BicycleSafe.com - - An illustrated guide to bicycle safety, including an illustrated guide to how to not get hit by cars.
National Bicycle Safety Network - - An American coalition of public and private organizations and agencies working together to increase safe bicycle use. Great resource for safety issues, especially traumatic head injury reduction.
Palmetto Cycling Coalition - - A non-profit organization dedicated to making South Carolina safe for all cyclists.