Integral World
Integral World is a website established and maintained by Frank Visser. It is currently the only website dedicated to both supportive and critical essays on Ken Wilber's Integral theory. The site hosts over 150 essays in a section called "The Reading Room". It also publishes an online book by Jeff Meyerhoff: Bald Ambition: a critique of Ken Wilber's integral theory, which constitutes the most comprehensive criticism to date of Wilber's philosophy and methodology.
In 2004 the site was renamed from the original title and domain name, "World of Ken Wilber", following an angry email from Wilber asserting that criticisms on the site have nothing to do with his philosophy.
Recently Integral World has triggered a great deal of controversy, due to Wilber's antagonistic attitude towards criticism and review of his IDeaS, which has resulted in some critics making claims of cultic behaviour regarding Wilber and his Integral Institute.