CIA World Factbook -- Excellent maps and information on just about any country
National Geographic Society Map Machine -- Excellent...fun site to create maps

Constitutions of the World -- Text versions of Constitutions from many countries
Understanding the Federal Courts --  United States Federal Judiciary
Flags of the World -- Comprehensive listing of world flags.
Geography World -- Travel the world with this site
Atlapedia Online -- Great way to find good information on any country -- Go to "contents"
E-Conflict -- A great world encyclopedia of nations...you will find anthems, flags and maps.
Social Studies Links

The Library of Congress Country Study -- Need to know ANYTHING about ANY country?

Maps and References -- Terrific site by the University of Iowa
PCL Map Collection -- Nice collection from the University of Texas at Austin
Atlas and Geography Links
Alpha CCIS World Atlas Home Page -- Need a world map? This is the place to be
Fodor's Travel Guide -- Great way to plan your next vacation
Lonely Planet (Text Express) -- A great way to visit other parts of the world - Go to destinations
The 50 States of the United States   Contains interesting facts about all 50 states