Chapter by ‘Big data’ offer novel opportunities for civic engagement and foster the emergence of data activism, a form of technopolitics from the ground–up that assumes people’s active engagement with data for empowerment. Proactive data activism, in particular, sees citizens taking advantage of the possibilities offered by data for advocacy and social change. This chapter combines social movement studies and media studies to analyze the emergence of proactive data activism in the Latin American continent. Analyzing the case of InfoAmazonia—a project blending citizen participation and data analysis to generate news about the endangered Amazon region—this chapter adds to our understanding of technopolitics as a way to reinterpret reality, empower people, facilitate collective action, and challenge the establish social norms embedded in our understanding of technology and social change. Furthermore, it contributes to the understanding of how data can restructure social reality, and in particular civil society action….(More) (Other chapters)”.