American Physical Therapy Association (APTA)
http://www.apta.org/

The Interstitial Cystitis Network (ICN)
http://www.ic-network.com/

The National Vulvodynia Association (NVA)
http://www.nva.org/

The International Pelvic Pain Society (IPPS)
http://www.pelvicpain.org/

The American Urological Association Patient Health Page
http://www.urologyhealth.org/

Irritable Bowel Syndrome Information
http://www.helpforibs.com/