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/

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/