This investigation seeks to understand, why and how social means join in the teaching of a university teacher. The social means are considered to be interactive platforms of communication related to the web 2.0 (social web), which allow to generate contents, to construct and to share information and knowledge between diverse users, favoring the collaborative social learning or the learning called 2.0, Framed in the vision of reflexive citizens, compromised with his individual and group develop. The qualitative approach of this work allowed the utilization of biographical - narrative technologies of the social investigation, centring on the method of study of the only case. Interviews were applied in depth to the study of case, which later they were transcribed, realizing a statement that demonstrated communicative and didactic processes, paths, transitions and transformations of his educational practice.