American Academy of Orofacial Pain
   Healthcare professionals dedicated to relieving orofacial pain, educating the public, creating guidelines for treatment, and researching.
   http://www.aaop.org/

American Academy of Pain Management
   Membership organization, based in California, providing an online forum for patients and professionals to share insights into the management of pain. Resources, programs and information available.
   http://www.aapainmanage.org/

American Academy of Pain Medicine
   National organization, based in Illinois, for physicians practicing the specialty of pain medicine. Information on educational programs, a membership directory, career opportunities, and internet resources.
   http://www.painmed.org/

American Pain Society
   Multidisciplinary educational and scientific organization dedicated to serving people in pain. Online bulletins, news, and information about events and membership.
   http://www.ampainsoc.org/

International Association for the Study of Pain
   Nonprofit association dedicated to furthering research on pain and improving the care of patients with pain. Based in Seattle, Washington.
   http://www.iasp-pain.org/

Pain and Policy Studies Group - University of Wisconsin
   Facilitating public access to information about pain relief and public policy, including material published by the PPSG, its WHO Collaborating Center, and other authoritative sources.
   http://www.medsch.wisc.edu/painpolicy

Society for Pain Practice Management
   Provides professionals with information on diagnosis, treatment, medical billing, legislation and education. Also offers books and articles, insurance, a directory and details of meetings.
   http://www.sppm.org

The British Pain Society
   Details information about this representative body for health professionals, including aims, membership criteria and a who's who. Also provides news, links, publications and regional contacts.
   http://www.britishpainsociety.org/