National Institute on Aging
NIA, one of the 27 Institutes and Centers of NIH, leads a broad scientific effort to understand the nature of aging and to extend the healthy, active years of life.

UIUC Aging Initiative
An interdisciplinary research and education effort at the University of Illinois aimed at increasing knowledge of the aging process and its impact on the individual and society.

Mayo Clinic Senior Health Center
Useful information on diseases and conditions that affect older adults and what you can do to stay healthy.

Alzheimer's Association
An excellent source of information on all things Alzheimer's.

AARP Brain Health
The American Association of Retired Persons's interesting and informative site dedicated to current topics in brain aging.

RealAge
The popular website based on Dr. Michael Roizen's best-selling book. Find out how young you really are.