- www.ps-sexualtherapie.de For my practice in Berlin, in German.
- www.vatvanzelfwaardering.nl Literally: Barrel of Self-appreciation, a practical and very helpful method in treating ‘Sex-addiction’ in which I was trained. (Website in Dutch)
- www.soaaids.nl For questions about sexually transmitted diseases.
- www.nvvs.info The Dutch Association for Sexology, where I am a registered member.
- www.sense.info Extensive site for adolescents with information about sex, bodily functions, birth control, (possible) pregnancy, etc.
- U kunt zich direct aanmelden, er is geen wachtlijst
- Avondconsult mogelijk
- Voor mensen in het buitenland is telefonisch consult mogelijk