City Population
Statistical tables and maps for the principal cities and agglomerations of the world.
http://www.citypopulation.de/

Eldis Country and Region Profiles
Search for information on economic, political and environmental issues in countries throughout the world.
http://www.eldis.org/country/

Island Directory
Basic environmental and geographic information on the significant islands of the world.
http://islands.unep.ch/isldir.htm

NationMaster.com
Provides country and regional graphs and descriptive statistics based on geography, military, economy, crime, education, and transportation.
http://www.nationmaster.com/

National Geographic: Travel & Cultures
Includes photos, maps, videos, flags and facts, all indexed by continent and country.
http://travel.nationalgeographic.com/travel/

Nations Online
A comprehensive portal to sites in various countries throughout the world.
http://www.nationsonline.org/