(Extended from the Special interest group held at INTERACT 2009 , Sweden) The evolution of ICT has switched the attention from personal to social computing. Within social computing, the focus has been on the following issues: Communication, Knowledge sharing, Communities, Collaboration. The overall paradigm that has driven, at least within CSCW, the research has been the situated action paradigm, intertwined with the language - action perspective. The complexity of the social dimension of human life has two complementary aspects: On one side, there is a problem which has been paid greatest attention up to now: the need to be fully aware of...