Listed below are a number of excellent web sites about cancer pain which will assist you in your search for more information .  Cancer pain research is a very dynamic field. There are exciting things happening in this area.
I will try to up-date this site often.

 

American Academy of Pain Management
find a pain clinic listing - telephone 209.533.9744
American Board of Pain Management
telephone 847.375.4726
Mayo Clinic Pain Management Center
list of pain centers and clinics 
National Hospice and Palliative Care Organization
find a local hospice, which in turn may provide insight on local pain practices telephone 703.387.1500
Pain.com
pain clinic listings by state, volunteer listing
Beth Israel Medical Center - Stoppain.org
In the palliative care discipline, Beth Israel's Dept. of Pain Management and Palliative Care is excellent
American Pain Society
a professional health organization whose goals are to study pain
American Academy of Pain Medicine
membership directory in download format - telephone 847.375.4731
American Society of Law, Medicine and Ethics
International Association for the Study of Pain
an international professional organization whose goals are to study pain and to call attention to the importance of pain as a field for multidisciplinary scientific inquiry and to pain prevention/relief as a priority for health care delivery.
Cancer Pain
information to help patients and health care professionals better understand the management of cancer pain