Theoretical aspects of scholarly publishing about the Internet in communication sciences in Spain have received little attention. The present text analyses scientific framework, categories, concepts and keywords used in research, collected from the most relevant specialized Spanish journals in the field, as well as research objectives that are pursued in connection to communication levels of study and types of data. A content analysis of a representative sample of 227 scientific articles was done in the five leading Spanish journals in communication in the period 1995–2015, in which the academic interesting on Internet as an object of study was consolidated. The results show a predominance of descriptive theoretical frameworks and a hegemony of journalism as an academic reference. Nevertheless, there is an increase complexity out of the mass media field. The research on the Internet in the communication field is presented as a reflexive opportunity to understand interdisciplinarity and the way this acquires epistemological consistence in the scientific discourse.