Here's a little more information on the effectiveness of shining a spotlight on Fox's motives and bias. The article certainly appears balanced, insofar as it points out the risks of the debate, and cites (some) credible sources for the criticism of the President. It also cites some interesting numbers about the price the the republican party pays for casting its lot with Rush and Ruppert.
http://www.politico.com/news/stories/1009/28532.html
Regards,
D-Ray