An overview by Richard A. Slaughter.

The Atman Project is where eastern philosophy meets western psychology.

A mostly critical look at Ken Wilber's book from 2000.

An integral concept can help to distinguish problematic movements from authentic ones.

Credited with developing a unified theory of consciousness - a synthesis and interpretation of the world's great psychological, philosophical, and spiritual traditions - Ken Wilber is one of the most important transpersonal writers. This site links to discussion forums, available Shambhala books and previews of unpublished works.

Ken Wilber is the most influential integral philosopher in today's world. This site features talks between Ken and some of the most important thinkers and leaders alive.

A compendium of writings by Ken Wilber on one of Wilber's teachers, Adi Da.

Published by Shambhala Publications. Includes archive of topics and history of postings.

Frank Visser's collection of resources on Wilber and his method.

Offers real-world Integral strategies/projects, integral salons around the globe, AQAL tests/assessments, top Integral books. Produced by Matthew Kalman, a founder member of Ken Wilber's Integral Institute.

Integral offers workshops and training including an Integral Life Practice, which is a carefully configured programme of cross training designed to improve mental, physical and spiritual wellbeing.

Scottish based group exploring the work of Ken Wilber and other Integral theorists.

Bibliography of articles critical of the work of Ken Wilber, spans 1981 to the present. Citations are in scholarly journals, taking issue with a wide range of his published subjects.