Corruption is a global social problem that manifests itself in a variety of ways across the world and there are several attempts to counter it, also from the grassroots. Activists, civil society organisations, and concerned citizens engage with anti-corruption in different manners. There have been many examples in which digital media, and especially social media platforms like Facebook and Twitter, played a relevant role in the emergence and spreading of protests in the past decade, including the massive anti-corruption movement that developed in 2011 in India (Chowdhury & Abid, 2019), the wave of massive protests that hit Brazil in 2013 tackling, amongst other issues, also the corruption of the political elites (Saad-Filho, 2013), the youth-led anti-corruption protests that occurred in Guatemala in 2015 (Flores, 2019), or the anti-corruption protests that developed in Romania between 2016(Olteanu & Beyerle, 2018. The widespread employment of social media platforms in Indonesia contributed to creating spaces where citizens discuss information about corruption (Prabowo et al., 2018). Furthermore, the use of social media platforms might support the creation of online communities that coalesce around a shared sense of injustice and then, eventually gather in offline mobilisations. This happened in the mobilisations that occurred in Egypt in 2011, in which the Facebook page 'We are all Khaled Said' proved crucial in gathering the discontent of thousands of users against police brutality and, also, the then Egyptian president Hosni Mubarak's corruption; a sense of disenchantment that went on to flow into the street demonstrations that swept across the country (Alaimo, 2015). While all these cases address the relevant role of social media platforms in anti-corruption efforts, this volume and the chapters in it move their gaze beyond this type of digital media to understand what else is going on in the world of anti-corruption from the grassroots, telling other, often untold, stories.