The Sudan Open Archive aims to provide free access to a digital archive of materials about Sudan. It is a special project of the Rift Valley Institute with support from UNICEF, UNEP and the Southern Sudan Centre for Census, Statistics and Evaluation. Topics covered include: economic, social and political development in the region, the civil war and peace process; conflict in Darfur. There is also general country information about the history, culture, politics and economy of Sudan. Materials published between 1920-2009.
See more on the Sudan referendum http://electionsinthenews.
