The American Medical Association
Use the AMA search engine to find a wealth of information on menopause.

National Osteoporosis Foundation
The National Osteoporosis Foundation (NOF) was formally established in 1986 as the only nonprofit, voluntary health organization whose mission is to reduce and ultimately eliminate the widespread prevalence of osteoporosis through programs of research education and advocacy.

Foundation for Better Health Care
Menopause - A Patient's Guide to Better Health

The North American Menopause Society
The North American Menopause Society (NAMS) is a multidisciplinary, nonprofit organization that provides a forum for a multitude of scientific disciplines with an interest in the human female menopause.

Menopause.net
This site is sponsored by 'Organon' (a major pharmaceutical corporation) and contains valuable information on hormone replacement therapy,

National Women's Health Information Center
The National Women's Health Information Center is a one-stop gateway for women seeking health information.