Antisocial   Avoidant   Borderline   
Chats and Forums   Dependent   Histrionic   
Narcissistic   Obsessive-Compulsive   Paranoid   
Passive-Aggressive   Schizotypal      
Web Pages
Theodore Millon
Millon theory and psychological assessments focuses mainly on personality disorders.
Personality Disorders Information
Information about the major personality disorders, from Antisocial to Schizotypal.
Personality Disorders
Article summarizing the issues and symptoms. - Personality Disorder Resources
Information about borderline, antisocial, narcissistic, obesessive-compulsive, and other personality disorders. Offers links to related sites.
NPA Personality Theory
Personality disorders based on genetic traits (Mendelian) of narcissism, perfectionism, schizophrenia, autism and aggression.
Great Ideas in Personality--Personality Disorders
Diagnostic criteria, links, resources, and acronynms of personality disorders.
New Zealand Association for Psychological Type
A network of people interested in personality type. Promotes the constructive use of differences of Psychological type based in C G Jung's theories, primarily the Myers-Briggs type indicator.
Online Screening for Personality Disorders
A 20-question online test for personality disorders by Benjamin J. Sadock, M.D. and Waguih William IsHak, M.D. from the New York University School of Medicine, 1995.
Personality Disorders - Frequently Asked Questions Page
Frequently Asked Questions about Personality Disorders.
PTypes Personality Types
A comprehensive and systematic classification of 16 types of personality, correlated to the Myers-Briggs and Enneagram typologies
Personality Disorders Foundation
Articles, research, links, bibliographies, and treatment options.
Personality Disorders
The medical and clinical aspects of personalty disorders.
Personality Disorders Community
Expert information, support groups, chat transcripts, journals, personality disorders tests, events, and recommended reading.
Merck Manual Personality Disorders
The Merck Manual of Diagnosis and Therapy Psychiatric Disorders - Personality Disorders.
Open Site Personality Disorders
Clinical data, diagnostic criteria, and overview of current research in the Open Site encyclopedia.

The origins of the Medpage Directory is based on the Open Directory