CIA The World Factbook
URL: https://www.cia.gov/library/publications/the-world-factbook/index.html

Note: You select the country. There are also links to the flags of the world and reference maps.

Author: Central Intelligence Agency

CountryReports.Org
URL: http://www.countryreports.org

Note: This looks like an extremely useful site. Definitely check this one out!

Author: CountryReports.Org

Infoplease: Countries of the World
URL: http://www.infoplease.com/countries.html

Author: Information Please

The Library of Congress: Country Studies
URL: http://lcweb2.loc.gov/frd/cs/cshome.html

Note: Does not include all countries, but has a lot of information on the ones that are there.

Author: Library of Congress

The Living Africa
URL: http://library.thinkquest.org/16645

Note: Very nice professional looking site created by students for the Thinkquest competition. Check this one out.

Author: Thinkquest Student Competition

World Book Online
URL: http://www.worldbookonline.com

Note: Be sure to check out the links under Related Information on the righthand side of an article.

Author: Check the citation information that is at the end of an article.