The Academy of Cognitive Therapy (ACT) was created in 1996 as an organization to benefit both mental health professionals and the public

The American Psychiatric Association, founded in 1844, is the world’s largest psychiatric organization. It is a medical specialty society representing more than 33,000 psychiatric physicians from the United States and around the world.

The professional association of American psychologists

The Anxiety and Depression Association of America (ADAA) is the leader in education, training, and research for anxiety, depression, and stress-related disorders.

A clinical psychology information resource created for the purpose of providing useful, reliable and authoritative information about psychological assessment, testing, and practice management for practicing psychologists

ABCT is a multidisciplinary organization committed to the advancement of scientific approaches to the understanding and improvement of human functioning through the investigation and application of behavioral, cognitive, and other evidence-based principles to the assessment, prevention, treatment of human problems, and the enhancement of health and well-being.

The Association for Psychological Science is a nonprofit organization dedicated to the advancement of scientific psychology and its representation at the national and international level.

Offers full texts of documents significant in the history of psychology by author or by topic. Includes ancient, medieval/renaissance, and modern thought

C.S.S. brings together researchers from many fields who hold a common goal: understanding the nature of the human mind.

The International OCD Foundation (IOCDF) is dedicated to education, raising OCD awareness, supporting OCD research, and improving access to OCD treatments.

Internet Mental Health is a free encyclopedia of mental health information created by a Canadian psychiatrist, Dr. Phillip Long.

Mental Health America (formerly known as the National Mental Health Association) is the country’s leading nonprofit dedicated to helping ALL people live mentally healthier lives. With 240 affiliates nationwide, we represent a growing movement of Americans who promote mental wellness for the health and well-being of the nation – everyday and in times of crisis.

Offering resources in self-help, psychology, and mental health

National Alliance on Mental Illness is the nation’s largest grassroots mental health organization dedicated to building better lives for the millions of Americans affected by mental illness.

The National Institute of Mental Health (NIMH), one of the institutes that makes up ... is the largest scientific organization in the world dedicated to research focused on the understanding, treatment, and prevention of mental disorders

Dr. John Grohol's home of down-to-earth, reliable and objective mental health symptoms and treatment information. Psych Central provides mental health information as well as annotated guides to the most useful online resources today in mental health, psychology, social work, and psychiatry

Scholarly and self-help resources maintained by Russ Dewey. Includes links by type and topic, self-quizzes, and writings on applied issues

Commentary, Research and News that cover all aspects of Human Behavior, from the workings of the brain, to relationships and the larger community

Psychotherapy.net offers psychotherapy articles, interviews and videos with master psychotherapists: Yalom, Minuchin, Meichenbaum, Kernberg, & more.

Reliable and authoritative information on hundreds of common illnesses, 1000's of prescription drugs, and a wide range of herbal supplements.

Social Psychology Network (SPN) is an educational organization with nearly 2,000 members worldwide, providing over 18000 psychology links on a wide variety topics.