Maps and Country Studies

CIA World Factbook 
Maps, statistical profiles, economic overview, transnational issues.

World Maps and Country Profiles (WorldPress.Org) 
Maps, statistical profile, news

Background Notes (US Department of State)
Facts about the land, people, history, government, political conditions, economy, and foreign relations.

University of Maryland Guide, Finding International Statistics Online
Look here for many other sources of information about countries and regions of the world (It's not just for statistics.)