American Hippotherapy Association
http://www.americanhippotherapyassociation.org/
American Physical Therapy Association
http://www.apta.org/
Path (Professional Association of Therapeutic Horsemanship)
http://www.pathintl.org/
American Occupational Therapy Association
http://www.aota.org/
United Cerebral Palsy Orange County
http://www.ucp-oc.org/UCP/
Therapy Fun Zone
http://www.therapyfunzone.com/