Erowid Methamphetamine Vault (Health/Medications)
erowid.org
Description: Information on Methamphetamine including effects, FAQs, chemistry, law, images, media... reports, experiences, and links. Information on Methamphetamine including research, legislation, media coverage, bibliography and lots of links
Specializes in: psychoactive drug chemical stimulant methamphetamine crystal meth speed... uppers yaba

Erowid MDMA Vaults (Health/Medications)
erowid.org
Description: Information on MDMA (ecstasy) including images, effects, pill testing, health, law..., scientific abstracts. Information on MDMA (Ecstasy) including basic health info, dosage, effects, images, research, legislation, media coverage, bibliography and lots of links
Specializes in: psychoactive drug chemical entheogen hallucinogen psychedelic phenethylamine amphetamine... stimulant empathogen

How Stuff Works: Caffeine (Health/Medications)
howstuffworks.com
Description: Thorough explanation about a popular addictive drug found in foods and beverages... consumed by many each day, with a collection of related links. You probably drink something with caffeine in it every day 90% of Americans do. Learn why caffeine is Americas most popular drug and what it does to your body
Specializes in: caffeine coffee tea stimulant diuretic addictive drug drug cola... chocolate addiction

Erowid Caffeine Vault (Health/Medications)
erowid.org
Description: Information on Caffeine including research, legislation, media coverage, bibliography... and lots of links
Specializes in: psychoactive drug chemical stimulant caffeine coffee tea espresso... soda pop