Please visit GiveWell.org This CharityScorecard.org site was in use from 2006 to 2008, but is now mostly dormant, and the material here is out of date. The GiveWell project has similar goals and is being actively maintained. I've left the old CharityScorecard.org content here just for the historical record.

From CharityScorecard

Sub-Saharan Africa (SSA) 

Sub-Saharan Africa generally refers to a set of 46 or 48 countries on the African continent. Sub-Saharan Africa includes almost all of the countries in Africa, excluding only the 6 or 7 northern most countries and the island nation of Mauritius. See also: http://en.wikipedia.org/wiki/Sub-Saharan_Africa