Facebook is a successful site. After its introduction a growing interest developed around it all over the world. Why is it so successful? Itís not easy to say or even give a single answer that summarises the reasons for its millions of visitors. What is certain is that the "Facebook" phenomenon, and in this definition we want to include all sites that are similar, has created an illusion. The illusion of easy social contacts and easy friendships. A real phenomenon of "interpersonal disengagement", which would like all individuals to be in contact with each other but in an often superficial and baseless emotional reality. Furthermore, this phenomenon is not new; it already existed before the introduction of the book of faces, but certainly not as widespread and passively accepted. The introduction of the Internet and e-mail first, chat and virtual forums shortly after, and almost simultaneously the advent of cell phones and text messaging; this is where the phenomenon originated from. Facebook and its facebook people are not just another consequence of this process of "interpersonal disengagement" as we have defined it above. However the "worldwide" success of the portal of easy friendships leads us to a deeper reflection and pushes us to speak even of "addiction". Spending hours a day, all the time, on Facebook, taking time away from real life, real friendships, work, to ourselves, cannot be considered acceptable behaviour, and it is right in this case to speak of real "facebook-dependence".