The Encyclopedia of Political Science by 
Political Handbook of the World 2011 by Chiefs of State of Foreign Governments Lists the chiefs of state, the election process, and the election results.
Constitution Finder Links to constitutions, charters, amendments, and other related documents.
Embassy Provides a comprehensive list of embassies located in Washington, D.C.
Portals to the World Selected by Area Specialists and other Library Staff at the Library of Congress, this website lists links to electronic resources.