The aim of this article - through a process of action-research involving a sample of 243 subjects pre-teens and adolescents - is to highlight how the information medium can cause attacks, harassment, insults; but at the same time, it in use as a source of new communication strategies of group interaction and educational intervention in virtual communities. Cyberbullying is materialized in the lives of victims in each moment of the day and through different realities (video, photos, email, chat, sms, phone calls, ecc.). One of the methods of prevention, which looks at the group dynamics and the media technologies as a source of education, is the peer education video. The use of online materials as a method of prevention and awareness of educational agencies and proponents of the same and / or victims of cyberbullying.
Keywords: Cyber-bullying, traditional bullying, prevention, peer education video, new groups, modern educational dimensions.