Nicola Giusto, Ma in Digital Communication and Cultures The University of Sydney, NSW, Australia Ontological and political implications of Network Theory It is self-evident how information and communications technologies play a central role in social and cultural transformations in many universes: media, language, social actors, politics and public administration, thought and space. This paper attempts to clarify the present time, analyzing social network paradigm and its relation with the so called digital culture from a critical prospective. In particular, it preliminary stresses the relationship between any kind of network, power, knowledge and technology (Heidegger, Foucault), then it presents a critical analysis of the most recent studies and ideas (SNT, SNA, the Small world theory, the Network effect, Innovation, Information cascade and logic of diffusion). In part III, two different kinds of realist social ontology are presented and evaluated (Latour’s work and DeLanda’s Assemblage theory) in the attempt to move towards a new philosophy of relation. The last part explores social and political implications of living embodied in a complex global social network where governance is everyday more managed by technical protocols, apparatus and machines (Deleuze, Castells, Agamben, Galloway). More information on: http://www.culturedigitali.org http://www.lefthandedstudio.com