Book excerpt: This book reflects on the rapid rise of social media across the African continent and the legal and extra-legal efforts governments have invented to try to contain it. The relentless growth of social media platforms in Africa has provided the means of resistance, self-expression, and national self-fashioning for the continent’s restlessly energetic and contagiously creative youth. This has provided a profound challenge to the African "gatekeeper state", which has often responded with strategies to constrict and constrain the rhetorical luxuriance of the social media and digital sphere. Drawing on cases from across the continent, contributors explore the form and nature of social media and government censorship, often via antisocial media laws, or less overt tactics such as state cybersurveillance, spyware attacks on social media activists, or the artful deployment of the rhetoric of "fake news" as a smokescreen to muzzle critical voices. The book also reflects on the Chinese influence in African governments’ clampdown on social media and the role of Israeli NSO Group Technologies, as well as the tactics and technologies which activists and users are deploying to resist or circumvent social media censorship. Drawing on a range of methodologies and disciplinary approaches, this book will be an important contribution to researchers with an interest in social media activism, digital rebellion, discursive democracy in transitional societies, censorship on the Internet, and Africa more broadly.