Civics Online
http://www.civics-online.org/
Digital History
http://www.digitalhistory.uh.edu/
Exploring Constitutional Law
http://www.law.umkc.edu/faculty/projects/ftrials/conlaw/home.html
Presidential Speeches
http://odur.let.rug.nl/~usa/P/
Ben's Guide: Duties and Responsibilities of Citizens
http://bensguide.gpo.gov/9-12/citizenship/responsibilities.html
American President
http://www.americanpresident.org/
CongressLink
http://www.congresslink.org/
Explore DC
http://www.exploredc.org/index.php
Oyez: A Supreme Court Multimedia Database
http://www.oyez.org/oyez/frontpage
The U.S. Electoral College
http://www.archives.gov/federal-register/electoral-college/
The United States Senate
http://www.senate.gov/
Foreign Policy Association
http://www.fpa.org/
NATO: The North Atlantic Treaty Organization
http://www.nato.int/
The United Nations
http://www.un.org/
U.S. Department of State
http://www.state.gov/