An increasing number of patients with prolonged waiting times or difficulties to get admittance to the health system has enforced the number of internet-based psychotherapy treatments in many countries. There is a wide range of solutions ranging from self-help to guided or therapist-delivered versions. Advantages and disadvantages of the different treatment approaches will be highlighted. Completer rates and effects of different e-health treatments will be compared with face to face treatments. Additionally different quality parameters of internet-based psychotherapy will be focused.