ABSTRACT
Through the internet almost every kind of communication is allowed: it is possible to have spoken conversations as well as written interactions; one-to-one communications as well as one-to-many or even many-tomany ones; it is possible to publish written texts with images and audio and video as well; it is possible to communicate in real time or to send messages that will be read later; it is possible to send and share documents of all kinds; and so on. The features of the communications taking place over the internet are strongly dependent on the tools employed: different tools impose different constraints and offer different options to interlocutors. In this chapter we are going to present the main features of interpersonal communication via the internet, the so-called CMC.
