James Ostrowski’s “Thinking about Drug Legalization” is an excellent and detailed article about the problems of drug prohibition.

The Wikipedia has an article written on the Prohibition on drugs from a hopefully Neutral Point of View.

The web site “Drug War Facts” was recommended to me by a libertarian correspondent. I didn’t fully read it yet.

The Schaffer Library of Drug Policy is a comprehensive site for support of the legalisation of drugs. It contains a copy of the Drug Enforcement Administration (DEA) site, with comments and especially a step-by-step rebuttal of their “Speaking Out against Drug Legalisation” document.