This research paper is based on two sociological surveys dealing with internet and mobile telephones conduced in Bulgaria in 2009 with the participation of author. The survey findings made it possible to trace several sociocultural processes and trends showing convergent dimensions. The most important of them examined in this paper are related to: highlighting the mutual interchangeability of two meta-media in various contexts; the transformation of individual communication participation from a passive into an active endeavour; the revival of letter writing and changes in written culture; the emergence of a new kind of mobile determined culture; individuals’ becoming independent media; the completion of the framework of processes of medialization (mediatization) of society.