» The Personality Project 
- A guide for those interested in personality theory and research, including readings, abstracts, and links, maintained by Bill Revelle at NWU.
» Clear Direction - Provides personal and professional profiles based on the theories of Axiology.
» The Dimensions of Human Space - Theoretical paper on personality type, organizational form, and the structure of human consciousness.
» Great Ideas in Personality - This website deals with scientific research programs on the psychology of personality.
» Gregorc Associates - Training, consulting and publishing firm directed by Dr. Anthony F. Gregorc, the creator of the Mind Styles Model; originator of the four style types: Concrete Sequential (CS), Abstract Sequential (AS), Abstract Random (AR) and Concrete Random (CR); and the developer of the Gregorc Style Delineator.
» International Personality Item Pool - a collaborative effort of personality researchers to develop advanced measures of individual differences.
» Laboratory of Personality and Cognition - The National Institute on Aging (NIA) Laboratory of Personality and Cognition, headed by Paul T. Costa.
» The Peer Nomination Project - Explores the discrepancies between self-report and informant measures in the assessment of personality and personality disorders.
» Personal Construct Psychology - Description of a constructivist system of psychology developed by George Kelly.
» Personality and Consciousness - Personality theories, processes and disorders. Maslow, Freud, Jung, Adler, Rogers, Skinner. Quotations, descriptions of work, links.
» Personality Theories - E-text designed for courses in personality theories, addressing psychoanalytic, behavioristic, and humanistic schools of thought, by Dr. C. George Boeree, Psychology Department, Shippensburg University.
» Personality theory on Horney's Role of Narcissism - Novel approach to personality testing by A.M. Benis, M.D., based on the "genetic" traits of narcissism, perfectionism and aggression.
» Perspectives - Existential theory of personality, including an outline of seven common personal perspectives on the world and a number of phenomenological sketches.
» Psychobiography - A scholarly resource for psychobiography. Contents include an annotated bibliography of psychobiographical research, articles, and links.
» Ptypes - A comprehensive and systematic classification of 16 personality types. Criteria and links to pages about persons within each personality group.
» Revelle.net - Prof Revelle's (Northwestern University) site covers personal and individual differences research.
» Risktaking.co.uk - An introduction to the psychology of risk-taking behavior, focusing upon the personality profiles associated with high-risk sports and health-risk behaviors.
» Riverside Accuracy Project - The Riverside Accuracy Project investigates the determinants of accurate personality judgments of others.
» A Science Odyssey: That's My Theory! - In this gameshow by the Public Broadcasting System, readers try to guess the identities of three major personality theorists.
» Self-Determination Theory - Research-based theory of human motivation and personality in social contexts. Includes researcher profiles, reference lists, selected articles for download in PDF, and research questionnaires and scoring instructions.
» St. Mary's University Blume Library: Personality Tests and Resources - A gateway of psychology links to Myers-Briggs-related tests, online tests, and other information on personality research.
» Temperament.com - Temperamental individuality in infants, children and adults. Research and practical information about temperamental characteristics in research and practice.
» Theories of Personality - Outlines for quick reference on the theories of Adler, Erikson, Existential, Freud, Jung, Maslow, Rank, Rogers.
» Walter Mischel - Inconsistencies in Personality - An article arguing that people's personalities are not as stable as many believe.
» What's in a Face - Psychology study exploring the relationships between personality, facial expressions and lasting facial features.
