Dalibor Petrović is assistant professor at the University of Belgrade, Serbia. He teaches Sociology and the Sociology of e-Communication at the Faculty of Transport and Traffic Engineering, and a Master’s course, ICT and Social Networking, at the Department of Sociology in the Faculty of Philosophy. Dalibor is the leading sociologist of the internet in Serbia. In 2001 he conducted the first research on online communication in Serbian chatrooms. After that he took part in a number of studies on social aspects of internet use, looking at online communication patterns, online dating, the digital divide, gender equality online, e-learning, etc. He is the author of the first book on social aspects of internet use in Serbia (2008). As author and co-editor he has also published two more books about the internet and society and a number of scientific papers. In his latest book, Sociability in the age of the internet (2013), on both the theoretical and empirical level, Dalibor explores the manner and extent to which modern communication technologies have become integrated into the existing network-based form of sociability, and what the social function of these technologies are.