American Psychiatric Association
www.psych.org
A medical specialty society focusing on humane care and effective treatment for all persons with mental disorders.

• Clinical practice guidelines (including OCD)
• Research
• Advocacy

Obsessive Compulsive Foundation
www.ocfoundation.org
Not-for-profit organization of people with OCD and related disorders, family and friends, and medical professionals who treat or do research on OCD.

• Support groups
• Patient-friendly information
• Opportunities for clinical trials

American Psychological Association
www.apa.org
Scientific and professional organization focused on advancing psychology as a science and profession.

• Information resources (including behavior therapy)
• Research
• Education