摘要:This paper investigates the webpage in the Facebook social network entitled “Diário de Classe” (Class Diary), created in 2012 by a Brazilian student, in order to denounce structural and educational problems in her school. It seeks to understand the potential of the Internet as a field of expression, without denying the thin line that separates the positive element of virtual expressions from a dangerous exhibitionist process of forming fixed opinions. It is a matter of underlining the importance of criticality while making use of digital technologies, and the extent to which such telematic devices are involved in current discussions about the formation of the individual