Gerontology Research Group 
www.grg.org

World's Oldest People
http://health.groups.yahoo.com/group/Worlds_Oldest_People/

Strategies for Engineered Negligible Senescence (SENS-2)  
http://www.gen.cam.ac.uk/sens2

The Methuselah Foundation 
http://www.mprize.org/

Longevity Science: Unraveling the Secrets of Human Longevity & Aging 
http://longevity-science.org/