Mobile networks are the most accessible and affordable form of information and communication technology (ICT) in developing countries in Asia and Africa. Mobile social networks have greater potential than traditional mobile networks due to Metcalfe's and Reed's Laws, which state that the value of networks increases exponentially based on the number of users. The document proposes using open-source, cloud-based mobile social networks that can be accessed exclusively through mobile phones to help mobilize social change. These networks would allow users to connect through intuitive menus using voice and text in local languages and enable customization by non-governmental organizations for community-building around specific causes.