CIA - The World Factbook: Sudan - Features map and brief descriptions of the geography, economy, government, and people. US Department of State - Sudan - Country portal offers a map and links to Background Notes, USAID page, the US embassy and the current ambassador, press releases, fact sheets, annual Human Rights Reports and other major reports including Country and Industry Market Reports. US Library of Congress - Country Study: Sudan - June 1991 country profile plus information about historical setting, society and environment, economy, government and politics, and national security. Sudanese Online - Directory with links to websites for Sudan. Hejlah - The Country and People of Sudan - Provides general information from a Columbia University source along with a directory of categorised web links. University of Pennsylvania - African Studies Center: Sudan - Annotated directory of links to resources. Wikipedia: Sudan - Hyperlinked encyclopedia article includes overview of the nation, its history, politics, culture and geography. Sudan Open Archive - Offers free digital access to knowledge about all regions of Sudan usin a word-searchable, full-text database of historical and contemporary books and documents. Incorporates an interactive guide to internet resources on Sudan. Ahibo Portal of Sudan - Ahibo Portal of Sudan, Khartoum, institutions, presidents, embassies, political parties, schools, universities, economy, trade and investment, newspapers, culture and sport, tourism, cuisine, internet Columbia University Libraries - African Studies: Sudan - Directory of categorized and annotated links. NationMaster - Sudan - Profile includes information for various aspects of the country, with a special emphasis on statistics and rankings. BBC News - Country Profile: Sudan - Provides overview, key facts and events, timelines and leader profiles along with current news. Stanford University - Africa South of the Sahara: Sudan - Annotated directory of links to web resources.