| American Association for Geriatric Psychiatry | | AAGP is a national association representing and serving its members and the field of geriatric psychiatry. It is dedicated to promoting the mental health and well being of older people and improving the care of those with late life mental disorders. |
| American Counseling Association | | The ACA promotes the counseling profession through work in advocacy, research and professional standards. The site has general information and on-line skill expansion courses. |
| American Psychiatric Association | | U.S. and international members with the goal of ensuring humane care and effective treatment for all persons with mental disorder, including mental retardation and substance-related disorders. |
| American Psychiatric Foundation | | Provides grant support for programs in public education that increase awareness and understanding of mental disorders, advocacy initiatives that empower patients and their families to make informed healthcare choices, and research focused on the treatment and prevention of mental illness. |
| American Psychological Association | | Promotes research and represents the professional interests of psychologists in the United States. Includes information on publications and conferences, and a find-a-psychologist referral feature. |
| Association for Birth Psychology | | The first organization of professionals interested in the psychological impact of pregnancy, birth, and the perinatal period on personality. Research and clinical practice of psychotherapy and empirical investigation of the fetus, pregnancy, parents, and obstetical considerations. | |
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