International Osteoporosis Foundation - IOF provides information on osteoporosis, its prevention, diagnosis and treatment, supports medical advances and national patient societies, advocates health policy change.
http://www.osteofound.org/ more info...
National Osteoporosis Foundation - National Osteoporosis Foundation is a voluntary health organization solely dedicated to osteoporosis and bone health.
http://www.nof.org/ more info...
The Paget Foundation - Information for patients and medical professionals for Paget's disease of bone, primary hyperparathyroidism, fibrous dysplasia, osteopetrosis, and skeletal complications of breast and prostate cancer.
http://www.paget.org/ more info...