AACE is a professional community of clinical endocrinologists, who are physicians primarily in practice and in clinical endocrine research and academic medicine. AACE provides information on diseases that involve the endocrine system, such as thyroid disease and osteoporosis.

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.

The National Institute on Aging (NIA), one of the centers of the U.S. National Institutes of Health, leads a broad scientific effort to understand the nature of aging and to extend the healthy, active years of life. The NIA funds research and provides information about health and research advances to the public and interested groups.

The National Osteoporosis Foundation (NOF) funds research and publishes educational material about osteoporosis for consumers and health professionals. The NOF also provides information about bone density testing sites, new treatment, and local groups interested in osteoporosis. The foundation's mission is to prevent osteoporosis, to promote lifelong bone health, to help improve the lives of those affected by osteoporosis and related fractures, and to find a cure.

The North American Menopause Society (NAMS) is a nonprofit organization that promotes the understanding of menopause and thereby improves the health of women as they approach menopause and beyond. NAMS members include experts from medicine, nursing, sociology, psychology, nutrition, anthropology, epidemiology, pharmacy, and education. The NAMS Web site has information on perimenopause, early menopause, menopause symptoms and long-term health effects of estrogen loss, and a variety of therapies.

The Osteoporosis and Related Bone Diseases–National Resource Center is a government resource center that helps health professionals, patients, and the public learn about and locate current information on metabolic bone diseases such as osteoporosis, Paget's disease, osteogenesis imperfecta, and hyperparathyroidism.