Over the last twenty years, organizations have been "overwhelmed" by important social and economic changes whose causes can be traced, among others, in the changing characteristics of the environment in which they operate, the increased economic constraints they undergo and the unstable needs of the target they address. The introduction of technological innovation, especially ICTs and social media, have led to a permanent change in the processes of circulation of information within all organizations, including public authorities. And, above all, in the system of relations with the external environment that is now similar to a more immediate and, in some ways, more equal exchange, in comparison with the traditional hierarchical relationships among actors in different positions. In this paper we focus on these important changes, highlighting their specificities and the way they interest, at the same time, sociological theory, administration sciences and media studies.
Keywords: Social media - Public Administration - review