Presented at Scientific Editors Meeting as CRICS10 satellite event. Describes the future of scientific communication and open science (advantages over accession and use); preprints (definition, how and why to publish a preprint, characteristics and qualities of the preprints). List several advantages of using open science (Reproducibility and research, integrity, transparency, data reuse, quality and efficiency of science, positive economic impact, research equity challenges, intellectual protection, change of culture and scientific ecosystem. Displays examples of preprints sites and the Experiences of Memorias do Instituto Oswaldo Cruz: the Zika Fast Track.