Some approximations made to the reflections of J. Habermas, arising from his Theory of communicative action (1981) and revisited in Truth and justification (1999) to the present opportunities of knowledge construction in interactive Web platforms that are self supported in communicative interaction and collaboration. In this context, the article has as its main objective to analyze some implications of the pragmatics, the construction of truth and validation of information in terms of virtual communication arguments, considering a study of locus of Science information.