US State Department - Countries
This site provides links to foreign embassies in the United States and US embassies overseas. It also features basic information and short reports on countries, as well as many other useful features.

Embassy.org 
This website, maintained by TeleDiplomacy Inc., features links to many embassy websites, along with other useful information for people working or traveling internationally.

WWW - Governments
This site provides links to governments of countries around the world.