The chapter in question addresses the importance of social networks on the internet for science, as well as the evolution of these networks and their role in scientific research. It defines the concept of social networks on the internet and explores their specific relevance in the context of scientific research. In addition, it discusses how social networks can be used as tools for conducting scientific research and how to promote scientific dissemination and communication. It also explores active and passive approaches in the dissemination of research, highlighting academic social networks and other traditional tools that can be used for scientific outreach. The concept of the citation funnel is introduced, and guidance is provided on how to cite content taken from social networks. Finally, the challenges faced in communicating science to a lay audience are presented.