In this paper we analyse a sub-set of data from a representative EURESCOM survey on mobile telephone and Internet private uses completed in December 2000 in 9 European countries. In the following we analyse the data on social networks with family, friends, and acquaintances and the communication technologies used to create and maintain the networks. The results show a close relation between the forms of social life, the types of communications technologies used as well a certain specialisation of voice and written communications as well as the residential mobility impact on network size and spatial extension. This in turn influences the type of communication technologies used. All in all, regarding the overall pattern of social relations maintained online we see a strong link between electronic communications of all sorts and faceto-face interactions that seem to remain the ideal type of personal contacts.