Associations & Organizations Alzheimer's Association American Association of Retired Persons (AARP) American Geriatrics Society American Physical Therapy Association-Section on Geriatrics American Psychological Association Gerontological Society of America National Council on Aging Government Department & Agencies Administration on Aging Administration on Aging Center for Communication and Consumer Services AHCPR (Agency for Health Care Policy & Research) Census Bureau Centers for Medicaid and Medicare Services Department of Health and Human Services NCHS (National Center for Health Statistics) National Health Information Center National Institute on Aging National Institutes of Health (NIH) Senate Committee on Aging Social Security Online MetaSites Elderweb.  Links and information for caregivers, providers, and advisors to the elderly. Institute of Gerontology--Aging and Health Resources.  Maintained by the Institute of Gerontology at Wayne State University. This site has both browse and search features. Resources in Social Gerontology.  Maintained by the Department of Sociology and Anthropology at Trinity University.