The second half of the twentieth century brought major changes in the society and consequently in the different areas of the sciences. The growing number of universities after the second world war, the post-war industrial growth and later digitalization transformed the sciences present until then, enlarged the scientific community and the number of scientific publications. In the last couple of decades, the creation of web 2.0 brought new possibilities for knowledge co-production, interaction and exchange between all interested parties in research. The goal of this paper is to explore the possibilities for (extended) peer review and quality control on the internet, primarily blogs and social media, which could contribute to the standard peer review process and open the sciences to a wider audience. We are wondering if these processes could also raise the quality in science and lead to the democratization of knowledge production. We argue that changes in science also have an impact in reshaping the society and bringing democratization in knowledge production.