American Society for Aesthetic Plastic Surgery  
   Professional organization for plastic surgeons, including the practice of cosmetic surgery and anti-aging medicine.
   http://www.surgery.org/

Life Extension Foundation  
   Organization dedicated to scientific methods to slow and reverse aging.
   http://www.lef.org/

Rejuvenation And Longevity Foundation  
   Membership organization with chat and information about hormone therapy for anti-aging. Affiliated with the Senior Citizens Association in Tulsa, Oklahoma.
   http://www.anti-aging.org/

Society of Eternal Youth Network  
   Dedicated to finding a cure for senescence through research and community involvement. Located in Fremont, California.
   http://www.geocities.com/athens/sparta/4955/index.html

British Longevity Society  
   Non-profit life extension organization. News and directory of anti-aging drugs.
   http://www.antiageing.freeserve.co.uk

Academy of Anti-Aging Research  
   Nonprofit society of health care professionals dedicated to the advancement of anti-aging medicine. Publisher of the Journal of Anti-Aging Research.
   http://www.a3r.org/

World Health Network  
   The American Academy of Anti-Aging Medicine (A4M). News, directories of clinics and products, and publications.
   http://www.worldhealth.net/

Sciences of Longevity  
   Assistance to scientific research projects that are aimed at the extension of human life span.
   http://scienceoflongevity.com/

Longevity Meme  
   Nonprofit longevity organization that promotes and publicizes achievable anti-aging technologies.
   http://www.longevitymeme.org/

American Neuroendocrine Society  
   Professional society for neuroendocrinologists, including endocrinologists who specialize in anti-aging medicines.
   http://www.neuroendocrine.org/

Smart Life Forum  
   Holds monthly seminars on issues of alternative health, biochemistry, physiology, anti-aging, and related research areas. Palo Alto, California.
   http://www.smartlifeforum.org/

Los Angeles Gerontology Research Group  
   Holds regular seminars on possible clinical interventions against the aging process and related topics in growth and developmental biology. Includes rosters and photographs of those living past the age of 110.
   http://www.grg.org/

Strategies for Engineered Negligible Senescence (SENS)  
   Promotes research to apply engineering principles to stop and reverse the aging process. Initiatives, concerns, meetings, targets, and information about project leader Aubrey de Grey.
   http://www.gen.cam.ac.uk/sens/