The communicative action and information model for social networking in digital environments is a transdisciplinary articulation of knowledge and learning that guides the collective and collaborative construction of inclusive communication strategies and ongoing development of competencies to promote understanding between the players, members of a social network. Information Science, Communication itself and Information and Communication Technologies (ICT) promote this articulation in transdisciplinary mode. This model is the basis for the diagnosis and action planning herein: for the collective construction of communication relationships negotiated between participants of the network; for the creation of digital environments that provide spaces for learning to cope with information and communication; so that public communication experts may promote transparency of information as stated in the Constitution and the Law on Access to Information in Brazil. The model articulates methodologies for analyses of the individual and the network (Users Study, Social Network Analysis, multivoicedness) to obtain diagnosis and elaborate communication and information action planning. The model approaches were tested in different types of networks and are presented in this thesis.