• Action on Addiction Charity researching the causes of substance addicition.

• ASH - Action on Smoking and Health A London-based charity specialising in dealing with addiction and health problems relating to tobacco.

• Drug Abuse Resistance Education A Charity established to reduce drug, solvent and alcohol abuse and violence by teaching children the consequences and resistance skills.

• DrugNet A site based in Sheffield providing discussions on drugs as well as plenty of useful information.

• Hash Direct A resource for information, discussion, news and facts about cannabis, marijuana, hemp, and seed banks.

• Heroin Kills An important alert from the friends and family of Erin Allen. A heroin victim's story.

• Institute for the Study of Drug Dependence The ISDD provide study aspects of drug misuse and provide information about drug dependence in the UK.

• Legalise The site for a British campaign for the legalisation of cannabis.

• Legalise Cannabis The site for The Independent on Sunday's campaign for the legalisation of Cannabis in the UK.

• Psychoactive Drugs Reference guide and directory to assist in the identification and classification of psychoactive drugs.