Providing a unique insight into how activists and social change advocates are addressing Africa's many challenges from within, this collection of essays by those engaged in using mobile phone technologies for social change provides an analysis of the socioeconomic, political, and media contexts faced by activists in Africa today. The articles address a broad range of issues--including inequalities in access to technology based on gender and rural and urban usage--and it offers practical examples of how activists are using mobile technology to organize and document their experiences. 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 is given. Examples are shared in a way that makes them easy to replicate, hoping to lead to greater reflection about the real potential and limitations of mobile technologies. Contributors include Ken Banks, Nathan Eagle, Anil Naidoo, Berna Ngolobe, and Juliana Rotich.