1. Abramowitz Alan et Kyle saunders, 2005, « Why Can’t We All Just Get Along ? The Reality of a Polarized America », The Forum, vol. 3, no 2.
2. Adams Michael, 2005, American Backlash. The Untold Story of Social Change in the United States, Toronto, Penguin Canada.
3. Association canadienne des journaux (ACJ), 2007, « Daily Newspaper Paid Circulation Data », 11 janvier. Consulté sur Internet (www.cna-acj.ca/en/aboutnewspapers/circulation) le 18 mars 2007.
4. Angwin Julia, 2004, « For Fox News, Ad-Sales Market Isn’t Fair, Balanced », The Wall Street Journal, 20 mai.
5. Ansolabehere Stephen, Alan Gerber et James Snyder Jr., 2001, Does tv Advertising Explain the Rise of Campaign Spending ? A Study of Campaign Spending and Broadcast Advertising Prices in us House Elections in the 1990s and 1970s, octobre. Consulté sur Internet (econ-www.mit.edu/files/1211) le 12 décembre 2006.