Developmentdata.org aims to function as a hub for development data through which researchers and students can quickly find and access free data from reliable sources. This website contains links to developing country data on inequality, trade, aid, education, agriculture, migration, health, FDI, population, governance and debt. For each area, there is a brief data description or list of the variables available. The website also lists websites that host household survey data and searchable, general databases that include data for many different variables and topic-specific databases.
http://www.developmentdata.org/