| Center for Applications of Psychological Type | | Offers qualifying, certification, and advanced education training for the Myers-Briggs Type Indicator personality assessment tool. Publishes books, materials, and other instruments related to the MBTI and psychological type. |
| e MBTI | | An explanation of Jung-Myers-Briggs psychological model. All 16 types are portrayed comprehensively. |
| HP Sys | | High Performance Systems with articles on peraonality type. |
| Lifexplore | | Personal page with information and links to Myers-Briggs and Enneagram resources. |
| Personality Pathways | | Articles and resources on applications of the MBTI, Myers-Briggs concepts, and psychological type to management, teamwork, leadership, communication, and personal growth and development |
| Personality Plus | | Informal review of Myers Briggs types and the dynamics of personality development. |
| Psychological Types | | A Fresian analysis of the theory of the psychological types, with an extension into political philosophy. |
| Team Technology | | Large number of articles about Myers-Briggs and team building. Team Technology is a training consultancy that specialises in team building, leadership development and interpersonal skills training, in which they make extensive use of the MBTI and Jungian typological theory. |
| The Enneagram and the MBTI | | A periodical on the relationship between the two systems. Interviews, papers on theory, current studies, book reviews, tests, features on art/writing and personality type. |
| The Personality Page | | Take the Personality Questionnaire and discover your four-letter type. Learn how type affects your career, relationships, and personal growth. |
| TypeLogic | | Detailed profiles of the 16 psychological types. Supports a very active email discussion group on psych type. |
| Typology.Net | | A graphical guide to the Four Temperaments and 16 MBTI Personality Types. Presents pictographs of each personality type. |
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