União do Vegetal
Personal account of a Unaio do Vegetal service from a book about spiritual uses of psychoactives by Nicholas Saunders The Peyote Foundation
Dedicated to the protection and promotion of the peyote cactus and its sacramental use. Web of Possibilities
Contains historical information and other resources on the use of hallucinogens for spiritual awakening and growth. Includes bibliographies on the use of hallucinogens in shamanic religions.