Crisis mapping combines information collection, visualization, and analysis on an interactive map. Ushahidi is a crowdsourcing crisis mapping platform used in over 30 countries for applications like monitoring elections and violence. The document discusses case studies using Ushahidi in Egypt and Sudan during protests in 2011. In Egypt, the "Bee Project" mapped reports of electoral violations, while in Sudan the "Jan30 Crowdmap" mapped protests but was shut down after two weeks due to lack of local organization and an oppressive regime. The conclusion emphasizes building local capacity in technology use, data protection, security, and understanding limitations to prevent potential harm.