- The Vaults of Erowid
- Index of drugs, with physical effects, images, history, chemistry and law information for each. Articles and sections for wide variety of drug related material, including law, experiences, community, drug testing, spirituality, health, and artistic endeavors. - Drugs Forum - Information and forum about most recreational drugs.
- Chill Pharm - A portal for discussion of the drug counter-culture. Featuring news, policy and health discussions, experiences, and techniques.
- Crack Cocaine - Information, history, facts, and pictures of crack and cocaine.
- Ambitious Addict - Discussion forum, photos, and user contributions.
- The Lycaeum - Includes a listing of various mind altering substances, including their chemical structures and effects (with first person accounts).
- Alchemind Society - An international nonprofit association of people working in the public interest to protect the fundamental right to freedom of thought through the use of drugs. Includes news, law library, journal, plus organizational and membership information.
- Drug Calculator - Allows the user to calculate how much money is spent monthly and annually on drugs, alcohol, and cigarettes.
- Codeine Information - A non-profit source of information on the recreational use of codeine, dihydrocodeine, hydrocodone, oxycodone, and pholcodine. Includes facts, extraction guide, list of products containing codeine, information on side effects, addiction and tolerance.
- Recreational Drugs Information - Provides information about a wide range of recreational drugs, including their effects and historical usages.
- The Drugs Index - Portal to drug-related websites organized by topic, and a chat room.
- Archido: Archives for Drug Literature - Provides database, bibliographies, reviews, and links. [English and German]
- FAQs (11)
- Entheogens (7)
- Dissociatives (4)
- Psychedelics (49)
- Cannabis (88)