These websites provide general sources for country information:
Economist Intelligence Unit
Provides online access to worldwide country-specific political-economic and business information
Europa World Plus
Online version of the Europa World Yearbook and Regional Surveys, containing detailed essays about countries.
This site, maintained by the State Department, includes sections on a country's people, history, government, political conditions, economy, foreign relations, etc.
CIA World Factbook
Each country's entry includes snapshot facts and figures on geography, people, government, economy, transportation, the military, and transnational Issues.
Library of Congress: Country Studies
Description and analysis of the historical setting and the social, economic, political, and national security systems and institutions of countries throughout the world.