| A Brief History of Peyote: The divine cactus in historical context. |
| Council on Spiritual Practices - Entheogens: The purpose of the Entheogen Project is to systematically gather knowledge about the immediate and long-term effects of entheogen use. Includes essays and an annotated list of topical books. |
| Entheogen Dot: Online community, and an information resource with a focus on shamanic plants. |
| Peyote51: Features information on the history and chemistry of this plant, and links to related sites. Also offers for sale peyote cacti. |
| Plot55.com: Provides information on the cultivation, preperation and use of entheogenic, hallucinogenic and psychoactive plants. |
| The Mad Hatter: Guide to entheogen use; includes essays and information on drug laws and suppliers. |
| Wasiwaska: Center of studies for ayahuasca, the sacred brew of Amazonian shamans. Includes information about the center, and their seminars and presenters. Located in Brazil. |
Classical
