» União do Vegetal    Personal account of a Unaio do Vegetal service from a book about spiritual uses of psychoactives by Nicholas Saunders    http://www.csp.org/nicholas/vegetal.html

» 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.    http://www.well.com/user/dpd/webposse.html