- AT Verlag
- Swiss German-language publisher of The Spirit Molecule, and many other related books (In German)
- Ayahuasca Home Page
- A repository for all kinds of information regarding the famous jungle brew.
- Bibliographia Studiorum Psychedelicorum
- Maintains exhaustive list of psychedelic references, mostly in the peer-reviewed scientific literature. A handful of full-text articles.
- Blue Dear
- under the inspiration and guidance of Eliot Cowan, author of “Plant Spirit Medicine.” His studies and this organization have delved into the evidence of plant spirit beings revealed by shamanistic healing practices.
- Blue Honey
- Wide-ranging site covering psychedelics, spirituality, Gaia, time, visuals, science, travel, image gallery, many good links.
- Bufo Alvarius
- Information and advice regarding the psychedelic toad of the Sonoran Desert, whose venom contains 5-methoxy-DMT, another prime candidate for an endogenous spirit molecule.
- CSP: Council on Spiritual Practices
- Educates about spiritual relevance of psychedelics, and publishes books on the subject.
- Dire Gnosis 2012
- Musings, debate, speculations regarding the December 21, 2012 controversy.
- DMT-Nexus Magazine
- The go-to source for all things DMT related.
- Erowid
- Contains over 13,000 documents related to psychoactives including images, research summaries & abstracts, media articles, experience reports, information on chemistry, dosage, effects, law, health, traditional & spiritual use, and drug testing. projects.
- Future Primitive
- Cutting edge podcasts hosted by Joanna Harcourt-Smith, in which dreamers and activists articulate their vision of the future rooted in a respectful understanding of the past.
- Heffter Research Institute
- High level research organization funding a number of clinical studies, hosting conferences, and publishing an occasional journal.
- Inner Traditions
- Publisher of my books, and a purveyor of publications covering a unique spectrum of psychedelic, ancient and new spirituality, and holistic health.
- JWA Tucker
- JWA Tucker Psychedelics and Language
- MAPS: Multidisciplinary Association for Psychedelic Studies
- Publishes newsletter, funds and provides consultation to psychedelic and marijuana related research projects.
- Mysterious America/Alternative Perceptions Magazine
- “UFO’s, the Little People, and Ancient Shamanic Wisdom.” Article by Brent Raynes relating tryptamine use in Latin America to indigenous people’s visions of entities, and discusses our DMT research in that context.
- Cliff Pickover
- “DMT, Moses, and the Quest for Transcendence.” Discusses role of DMT in prophecy and other visionary states.
- Psychedelic Club
- High-quality University of Colorado, Boulder organization.
- Reality Sandwich
- A magazine of ideas for the transformational community.
- Shamans of the Amazon
- Independent Australian film-maker, Dean Jefferys, who has produced two films: “Amazon. The Invisible People,” and “Shamans of the Amazon.” Also hosts a e-mail list and a newsletter about ayahuasca, DMT, neo-shamanism.
- Michael Winkelman Ph.D.
- Professor of Anthropology at Arizona State University, with level-headed interest in consciousness, shamanism, and “neurotheology.”
- Zig Zag Zen
- Buddhism and Psychedelics. Site dedicated to book published in 2002 by the same name, edited by Alan Hunt Badiner and Alex Grey. I have a chapter in it.