The Arab Spring, the Iranian protests or the Catalan referendum in October 2017 provide clear examples of the power of social media in today’s society, with thousands of images and videos of police attacks recorded by citizens going viral on various platforms. At the same time, a great deal of disinformation is spreading across the internet. If users don’t verify the source and start sharing misleading content, fake news cannot be distinguished from real news. Furthermore, politicians around the world are taking advantage of this situation and use these fake news to discredit the power of mass media. But how important are social networks for civic mobilization?