On the philosopher Jacob Needleman www.jacobneedleman.com
Mindfulness www.aandacht.be www.itam.be www.levenindemaalstroom.be
The Royal College of Psychiatrists, Spirituality and Psychiatry Special Intrest Group www.rcpsych.ac.uk/spirit
Vlaamse Wetenschappelijke Hypnose Vereniging www.vhyp.be