1. Zillman, Dolf, and Jennings Bryant, eds. Selective Exposure to Communication. Hillsdale, N.J.: Lawrence Erlbaum Associates, 1985
2. Wills, Gary. Explaining America: The Federalist. Garden City, N.Y.: Doubleday, 1981
3. Sunstein, Cass. Republic.com Princeton, N.J.: Princeton University Press, 2001
4. Skocpol, Theda. “How Americans Became Civic.” In Civic Engagement in American Democracy, edited by Theda Skocpol and Morris P. Fiorina. Washington, D.C.: Brookings Institution and Russell Sage Foundation, 1999. Pp. 27–80
5. Schier, Steven E. By Invitation Only: The Rise of Exclusive Politics in the United States. Pittsburgh: University of Pittsburgh Press, 2000