National Osteoporosis Foundation About this site: Osteoporosis is an all too common bone disease, especially in older women. At this site you'll learn basic facts about risk factors, prevention methods, and treatments. Off-line support groups are also available. (http://www.osteo.org/) Pluses: Information is clearly written and comes from a reliable source. Minuses: Medical reports are more than a year old; no interactive features. Best feature: null