Dialogical material from different types of communicative webs and social networks seems to be easily available and also very principal for current research of communication. Although it is accepted, from some point of view, to differ various types of communjicative systems and webs, the results of research show that the differences have been shortened because different systems serve more than one types of communication.
Our study refers to some specific features of creating texts in internet discussions, it mentions, according to the dialog material from Facebook, some most typical specifics for observed types of communication, compares them with some examples of similar types of communication on chosen disussion forums. It shows that there are some changes in communication not only in content, but from the point of view of formal level as well.