The Josiah Bartlett Center for Public Policy  
   A New Hampshire-based think tank.
   http://www.jbartlett.org/

The John M. Ashbrook Center for Public Affairs  
   An academic forum for the study, research and discussion of the principles and practices of American constitutional government and politics.
   http://www.ashbrook.org

The James Madison Institute  
   A Florida-based public policy research organization dedicated to promoting economic freedom, limited government, federalism, traditional values, the rule of law, and individual liberty coupled with individual responsibility
   http://jamesmadison.org

Joint Center for Political and Economic Studies  
   A U.S. national, nonprofit institution that conducts research on public policy issues of special concern to African Americans.
   http://www.jointcenter.org/