The purpose of this paper is to point out the fact that several features specific to online communication correspond to what contemporary cultural studies refer to as a posthuman shift in discourse. The differences between communication in general and online communication have often been debated, especially in the field of linguistics, and many theorists have pointed out several differences, but also similarities, between the two. I will not be focusing on such debates here, since my aim is oriented towards formulating an adequate contextualization of online communication, rather than establishing its functional principles in relation to communication in general. Thus, I will be analyzing some of the specific innovations of online communication within a theoretical framework that proves to be not only compatible, but quite essential to the understanding of these mutations.In the past few years, when referring to contemporary culture or society, theorists had proposed a concept - that of posthumanism - and the concept is gain- ing an ever growing visibility in this filed. In other words, after the world (or, at least, Western culture) has witnessed a classical era, a modern and a postmodern one, it seems that today, at a global level, we are entering the first stages of a major cultural paradigm: that of poshumanism. This cultural and social shift corresponds, in fact, to another massive change that is of great importance in contemporary geology: according to geologists, the Earth seems to have recently entered into an era which can be best described as the Anthropocene. To summarize, geologists have noticed the fact the man's intervention (and presence) on Earth was so significant that today these interventions made by man throughout time are the most relevant indicators for geological studies. Therefore, both geology and cultural studies seem to be giving an immense attention to the topic of man, mankind/humanity, in an unprecedented manner. There are, of course, numerous reasons for this intense focus on the human being, and some of them shall be discussed in this paper, however, what I wanted to point out at this stage is not the fact that posthumanism is important in today's theoretical studies, but rather the fact that (the concept of) humanity is witnessing a broad reinterpretation/redefinition, and some of the conclusions that theorists have reached are directly related to human communication. In fact, the way people communicate in contemporary society validates even more the need for a better clarification of the posthuman paradigm. Thus, in the following paragraphs I will discuss some of the features that define posthumanism according to several theorists specialized in this matter. Afterwards, I shall point out that online communication (or human communication enhanced by technology) corresponds entirely to the posthuman shift, and therefore, an analysis of online communication and its features should take into consideration this new paradigm of posthumanism as a theoretical framework, even though we are dealing with a concept that is highly debated and has not yet been completely clarified. Obviously, since we are witnessing what seems to be only the first stage of posthumanism, a broader description of the concept is, for now, inaccessible, leaving, eventually, only the possibility of formulating speculations that might prove to be relevant (or not) in the next years.One of the first and major contributions to the posthuman debate is related to N. Katherine Hayles' book, How We Became Posthuman. The author here clearly formulates most of her observations concerning the posthuman paradigm in relation to the ever-growing technological development, approaching subjects such as cybernetic anxiety, virtual bodies, narratives of artificial life, etc. (Hayles, 1999). However, it is the obvious that not all aspects concerning internet or artificial intelligence can be related to the concept of posthumanism, because in this case we would be dealing with another concept, that of digital culture, and digital culture, in general, is commonly associated to postmodernism (the previous major cultural paradigm). …