CIA World Factbook
A drop-down menu on the homepage of the Factbook allows a user to select a country of interest. Government information about each country is provided including information about political parties and style of government. Other facts that can be found in this online book includes: economic data, geographical information, military stats and transnational issues.
National Agencies and Compendia Statistics (Vanderbilt’s Jean and Alexander Heard Library)
A comprehensive list of national statistical agencies – listed by country
U.S. Census Bureau
The Census Bureau maintains a list of links for many different countries and their nation’s statistics departments.