RESUMEN
Recent technological developments of communication media offer new approaches to diagnostic and therapeutic interactions with patients. One major development is Internet-based primary prevention in vulnerable individuals not yet suffering as well as the development of new therapeutic approaches for affected individuals based on the experiences of guided self-help through CD, DVD or bibliotherapy. The eating disorder literature shows several interesting, partly controlled and randomized, studies on bulimia nervosa, a few studies on binge eating disorder and no studies on anorexia nervosa. As part of the German Eating Disorder Network on Psychotherapy (EDNET) a 9-month Internet-based relapse prevention program for patients with anorexia nervosa after inpatient treatment was evaluated. Conception, first experiences and first results of the Internet-based relapse prevention program for anorexia nervosa are reported.