Ethiopia
The Ethiopian Embassy in Washington D.C. provides valuable information about visa requirements, news from the country, and some travel/cultural insights. The "doing business in Ethiopia" section provides basic information about the country, its government, political system, reasons to invest, and key industries.
National Bank of Ethiopia (NBE) is the central bank of Ethiopia. The website has information on the structure of NBE and a brief history of money and banking in Ethiopia. There is also a chart of recent currency transaction rates available on the homepage.