Trimbos-instituut - The Netherlands Institute of Mental Health and Addiction, aims to promote mental health in the broadest sense of the term. - http://www.trimbos.nl/
CEDRO - Centre for Drug Research, University of Amsterdam combines epidemiological and longitudinal research on illicit drugs, addiction theory, and drug policy developments in Europe. - http://www.cedro-uva.org/
Mind's High - Nicely designed site about knowledge and emotion in relationship to drug usage. - http://www.xs4all.nl/~4david/