Net activism shows how easily available tools allow the organization of social movements to be scaled up and extended globally. These media ecologies enable new forms of power. This one-day workshop gathers researchers focusing on the collaborative efforts within social movements, looking into the socio-technical systems; the organization of activism; the relations between traditional and social media; and the complex network of systems, information, people, values, theories, histories, ideologies and aesthetics underlying various types of activism. The workshop consists of brainstorming sessions where we materialize the intangible and develop our theories and ideas further through a collaborative design process.