PRIMERS ON AMERICAN GOVERNMENT

InfoUSA
Democracy
One-page primers on the fundamentals of democracy
Introduction to the U.S. system
Guiding principles

American Government Primer, On-line
http://www.usconstitution.net/consttop.html

American government 101 - About.Com
http://usgovinfo.about.com/od/rightsandfreedoms/u/gov101.htm
"The basic structure and functions of the United States Federal Government" - Robert Longley