Glucosamine and Osteoarthritis Resource Center
- Contains treatment information, exercise tips and an osteoarthritis newsletter.
- http://www.glucosamine-osteoarthritis.org

The Stone Clinic: Glucosamine Index
- Includes information about the liquid form of the supplement and reviews of relevant articles.
- http://www.stoneclinic.com/index_glucosamine.htm

DrugDigest: Glucosamine
- Information on dosage, usage, side effects, interactions, and drug comparisons.
- http://www.drugdigest.org/DD/DVH/HerbsWho/0,3923,4055%7CGlucosamine,00.html