My research interests concern the development of three dimensions: epistemological, theoretical and methodological. Epistemological and theoretical communication issues are dealt with from a critical constructivist approach, anchored in the contributions of genetic epistemology and the social theory of communicative action, with a focus on the logic of language and discursive ethics. Methodologically, I adopt argumentative perspectives for analyzing multi-language discourse (as on the Internet), integrating natural logic and social and political research-intervention processes. The field sites that interest me are those related to networked collectivities such as virtual communities and social networks.