eMedicine Health - Bicycle and Motorcycle Helmets
- Consumer health resource center providing information on the value of wearing head protection while cycling. Content is general purpose.
- http://www.emedicinehealth.com/bicycle_and_motorcycle_helmets/article_em.htm

Bicycle Helmet Research Foundation
- Presents analysis and commentary about scientific studies on bicycle helmet efficiency. The effects of compulsory helmet laws on cycling is also addressed.
- http://www.cyclehelmets.org/

Head Protection Research Laboratory
- Promoted as a "non-profit public benefit research organization", the HPRL tests head protection and other sports related surfaces and materials to ASTM, CPSC, DOT, and SFI standards.
- http://www.hprl.org/

World Health Organization Helmet Initiative
- Laws, resources, links, news, publications, mission statement and contact information.
- http://www.whohelmets.org/

Snell Memorial Foundation
- Not-for-profit organization dedicated to research, education, testing and development of helmet safety standards
- http://www.smf.org/

US: Bicycle Helmet Safety Institute
- FAQ, consumer guide, research resources, newsletter, helmet laws, production models, contact information and links.
- http://www.bhsi.org/index.htm