- 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.
- 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.
- Chill Pharm
- A portal for discussion of the drug counter-culture. Featuring news, policy and health discussions, experiences, and techniques.
- 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.