American Chronic Pain Association (ACPA)
The American Chronic Pain Association offers support and information for people with chronic pain.American Pain Foundation
The American Pain Foundation website is an online resource center for people with pain, their families, friends, caregivers, the media, legislators and the general public.
MEDLINEplus: Back Pain
National Foundation for the Treatment of Pain
The National Foundation for the Treatment of Pain is a not-for-profit organization dedicated to providing support for patients who are suffering from intractable pain, their families, friends and the physicians who treat them.