EN
Even though the scope of literature on online communication expands fast, very little attention seems to be paid to instant messengers-programmes providing for one to one communication in real time. It is quite surprising, since such programmes create conditions closest to face to face communication. The similarities and differences between computer-mediated and face to face interaction should be the most apparent in instant messenger mediated communication. The present paper focuses on this type of internet communication. The data sample is a transcript of an online conversation that took place within one day. It is analysed within the framework of Conversation Analysis with regard to turn-taking and the occurrence of discourse markers. Also, attention is paid to the use of minimal responses. Although, as might be expected, face to face and computer-mediated interaction share many features with respect to the above criteria, there arise a few interesting differences.