The scientific journal, or 'journal', has been greatly affected by the advent of its online digital accessibility, which brought changes to the historical practices of its printed format. The journal is the priority publication medium for scientific communication, one of the document categories where changes in the electronic format uncover an extensive action, different from traditional practices. The extensive communication -- a.k.a. the emblematic model of network interactions -- comes as much in new forms of document production, as well as in the organization of the technical landscape in which scientific information adapts to flexible and unstable forms. Discuss the consequences of an increase in the number of publications, and the success of an electronic portal in a short period. The effectiveness in its communication depends on the provision of solutions for information control. This requires a meticulous analysis of the products and services offered by every publisher.