This collection of essays by those engaged in using mobile phone technologies for social change provides an analysis of the socio-economic, political and media contexts faced by activists in Africa today. The essays address a broad range of issues including inequalities in access to technology based on gender, rural and urban usage, as well as offering practical examples of how activists are using mobile technology to organise and document their experiences. They provide an overview of the lessons learned in making effective use of mobile phone technologies without any of the romanticism so often associated with the use of new technologies for social change. The examples are shared in a way that makes them easy to replicate - 'Try this idea in your campaign.' The intention is that the experiences described within the book will lead to greater reflection about the real potential and limitations of mobile technologies. Edited by Nigerian activist Sokari Ekine, who runs the prize-winning blog Black Looks, the book brings together some of the best known and experienced developers and users of mobile phone technologies in Africa, including Juliana Rotich from Ushahidi in Kenya, Ken Banks of Kiwanja.net, and Berna Ngolobe of WOUGNET in Uganda.