This Web site for older adults offers aging-related health information. The site was developed by the National Institute on Aging (NIA) and the National Library of Medicine (NLM), both part of the National Institutes of Health (NIH). NIHSeniorHealth features up-to-date health information from Institutes and Centers at NIH. In addition, the American Geriatrics Society provides independent review of some of the material found on this Web site. The Web site's senior-friendly features include large print, simple navigation, and short, easy-to-read segments of information. A visitor to this Web site can click special buttons to hear the text aloud, make the text larger, or turn on higher contrast for easier viewing.

The American College of Rheumatology (ACR) and the Association of Rheumatology Health Professionals (ARHP, a division of ACR) are professional organizations of rheumatologists and associated health professionals who are dedicated to healing, preventing disability from, and curing the more than 100 types of arthritis and related disabling and sometimes fatal disorders of the joints, muscles, and bones. Members of the ACR are physicians; members of the ARHP include research scientists, nurses, physical and occupational therapists, psychologists, and social workers. Both the ACR and the ARHP provide professional education for their members.

The ACR Web site offers patient information fact sheets about care professionals and rheumatic diseases.

The Arthritis Foundation provides grants to help find a cure, prevention methods, and better treatment options for arthritis. It also provides a large number of community-based services nationwide to make living with arthritis easier, including self-help courses; water- and land-based exercise classes; support groups; home study groups; instructional videotapes; public forums; free educational brochures and booklets; the national, bimonthly consumer magazine Arthritis Today; and continuing education courses and publications for health professionals.

The National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) is a governmental institute that serves the public and health professionals by providing information, locating other information sources, and participating in a national federal database of health information. NIAMS supports research into the causes, treatment, and prevention of arthritis and musculoskeletal and skin diseases and supports the training of scientists to carry out this research.

The NIAMS Web site provides health information referrals to the NIAMS Clearinghouse, which has information packages about diseases.