Exam Quia Game http://www.quia.com/jg/567149.html
Constitution Quia game http://www.quia.com/jg/745527.html
New Glencoe book online resources (just pick the right chapter) http://glencoe.mcgraw-hill.com/sites/0078745748/student_view0/
A fun civics kids page http://bensguide.gpo.gov/9-12/index.html
A kids website for Congress http://clerkkids.house.gov