Association for Psychological Type
   An organisation focusing on the teaching and training of individuals using the MBTI.
   http://www.aptinternational.org/

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.
   http://www.capt.org/

High Performing Systems: Personality
   Articles by Dr. Dick Thompson and his colleagues on aspects of personality, including the relationship with communication styles.
   http://www.hpsys.com/personality.htm

MBTI Type Today
   Resources, articles, and new research related to the MBTI. Edited by the owners of the MBTI: Peter and Katherine Myers.
   http://www.mbtitoday.org

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
   http://www.personalitypathways.com/

Psychological Type and Christian Faith
   Research from the Practical Theology Unit at the University of Wales, Bangor, UK.
   http://www.bangor.ac.uk/rs/pt/type/definition.php

Psychological Types
   A Fresian analysis of the theory of the psychological types, with an extension into political philosophy.
   http://www.friesian.com/types.htm

TYPE and CULTURE .com
   MBTI tests and information on the relationship between personality type and culture.
   http://www.typeandculture.com

Team Technology
   Articles about the test and team building from a training consultancy.
   http://www.teamtechnology.co.uk/

Temperament and Attention Deficit Disorder
   The relationship between MBTI temperament types and ADD.
   http://borntoexplore.org/addtemp.htm

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.
   http://tap3x.net/EMBTI/journal.html

The Introverted Coach
   Assistance in career, relationships, school, and dating for introverts.
   http://www.theintrovertzcoach.com

The Personality Page
   Take the Personality Questionnaire and discover your four-letter type. Learn how type affects your career, relationships, and personal growth.
   http://www.personalitypage.com/

Type Can
   A multimedia demonstration of psychological type for youth, sponsored by CAPT (Center for Applications of Psychological Type).
   http://www.typecan.org

TypeLogic
   Detailed profiles of the 16 psychological types. Supports a very active email discussion group on psych type.
   http://www.typelogic.com/

Typology.Net
   A graphical guide to the Four Temperaments and 16 MBTI Personality Types. Presents pictographs of each personality type.
   http://www.typology.net/

Wikipedia: Myers-Briggs Type Indicator
   Historical development, type dynamics and further reading resources offered.
   http://en.wikipedia.org/wiki/MBTI

e MBTI
   An explanation of Jung-Myers-Briggs psychological model. All 16 types are portrayed comprehensively.
   http://www.e-mbti.com