Ushahidi (Swahili for "testimony" or "witness") is a website created in the aftermath of Kenya's disputed 2007 presidential election (see 2007–2008 Kenyan crisis) that collected eyewitness reports of violence sent in by email and text-message and placed them on a Google map. It is also the name of the open source software developed for that site, which has since been improved, released freely, and used for a number of similar projects.
Ushahidi uses the concept of crowdsourcing for social activism and public accountability, serving as an initial model for what has been coined as 'activist mapping' - the combination of social activism, citizen journalism and geospatial information. Ushahidi provides a mechanism for local observers to submit reports using their mobile phones or the internet, while simultaneously creating a temporal and geospatial archive of events.
News articles is available at the official website.;
Wiki scholars article: http://newmediadev2009.wikischolars.columbia.edu/Ushahidi+Review