This document discusses how crowdsourcing can be used effectively for social governance and emergency response. It provides examples of how crowdsourced data was used to map crisis situations in Haiti and Libya in near real-time. While concerns about data verification and costs exist, the document argues that crowdsourcing can deliver actionable data if best practices are followed around structuring data collection and producing digestible reports. It suggests crowdsourcing could improve existing public services and help address major challenges in countries.