Erowid Psychoactive Vaults:Information on entheogens, psychedelics, and hallucinogens including traditional, spiritual, and responsible use, chemistry, effects, experiences, images, research, legislation, media coverage, bibliographies and links.
Ask Dr. Shulgin: Information about psychedelics, entheogens, empathogens (MDMA, Ecstasy), from a pharmacologist and chemist.
Cluster Busters: Information regarding the use of hallucinogenic substances for the treatment of cluster headaches and other vascular headaches.
HPPD: Hallucinogen Persisting Perception Disorder: Information, treatment, and forums for sufferers of HPPD (Hallucinogen Persisting Perception Disorder), also known as flashbacks, which happens to some users of psychedelic drugs.
HPPDonline.com: Information and message boards for people with Hallucinogen Persisting Perception Disorder (flashbacks).
Original Kleptonian Neo-American Church: Includes text of "A Narrative of the Early Years of American Psychedelianism" and offers the book for sale.
Psychedelicjones.com: One man's experiences with, and thoughts about, psychedelic substances.
Serendipity: Psychedelics: Articles on psychedelic mushrooms and DMT (with field notes on DMT experiences); LSD and Ketamine trip reports; preservation of dried psilocybin mushrooms; links to other documents concerning psychedelics.
Status of Ololiuhqui in Mexico:
The Albert Hoffman Foundation: Homepage of the Albert Hoffman Foundation. Albert Hoffman is the inventor of LSD.
The Psychedelic Library: Menu of articles, research papers, books, and essays on LSD, peyote, psilocybin, and the use of psychedelic drugs in research, therapy, religion and personal growth.
Trip Magazine: A mainstream publication for about psychedelics.
Tryptamind: Resource on psychoactive, psychedelic and hallucinogenic plants and the pharmacological effects of their active chemical constituents.