Official site of Don Riso and Russ Hudson. Offers a discussion board, information about the Enneagram system, and free tests.

Kathy Hurley and Theodorre Donson's accurate, easy to learn, and fun to use presentation of the Enneagram.

Author Janet Levine's personal site, focusing on the use of personality typing for parents and educators.

A periodical on the relationship between the Enneagram and the MBTI. Interviews, papers on theory, current studies, book reviews, tests, features on art/writing and personality type.

Essay on which Buddhist paramitas (perfections) which are most important to cultivate as a function of one's Enneagram type.

The Enneagram and its implications for study of self and personal growth.

Description of a CD that discusses the Enneagram with illustrations from Beethoven's life and excerpts from Beethoven's piano sonatas.

Descriptions and analyses of the 9 types. Supports message boards and a chat room. Offers two different online Enneagram tests.

Discussion of the characters of Star Trek applying the Enneagram personality types.

Presents the SimilarMinds version of the Enneagram.

Presents an Enneagram-influenced system of 9 soul types, and corresponding body expressions characteristic of each type.

Enneagram teachings in the Narrative Tradition founded by Helen Palmer and David Daniels, M.D., with free video clips of the nine Enneagram types.

Offers articles and products developed by Jerome P. Wagner.

About Enneastrology, the theory which correlates Enneagram Personality Types with astrology.

Offers a practical guidebook for parents on how the Enneagram can help to understand and work with children's personality traits and behavioral patterns more effectively and creatively.

An eclectic journal dedicated to intelligent discourse about the enneagram, its current applications, and its potential for the future.

Offers a newsletter, online chat, a forum, seminars, and streaming audio and video lectures.

Offers a free self-study course with 50+ lessons, essays about enneagram strategies, self-assessment questionnaire, online newsletter, and a calendar of events.

Enneagram test to learn ones personality type, and energy healing recommendations for each Enneagram type.

A free and open learning community where people interested in the Enneagram symbol and types can share with and learn from each other

Enneagram applications for leaders, teams, organizations, coaches, counselors, and consultants based on Michael Goldberg's best-selling book "The 9 Ways of Working."