With the increasing number of devices affording access to audiovisual content, its storage and its production, and the diffusion of new interpersonal communication tools, families find themselves forced to make complex choices. Based on twelve monographs of families in the Paris area equipped with multiple communication devices, including at least Internet access and a mobile phone, this article describes in detail how the take-up and sharing of a PC with Internet access fits into the history of a home's family life and the organization of its territory. It highlights both the diversity of cases and two major implications of multiple equipment: first, transformations in the constitution and sharing of the cultural and family heritage due to digitization; and second, the redefinition of the opening/closing of the home to the outside, with an increasingly visible form of sociability not shared by all its members.