http://www.cnn.com/2010/TECH/web/08/16/internet.journalism.politics/index.html?hpt=T2
And then of course the most depressing part:
These tendencies have been exaggerated by the internet, whose polarizing sites -- the Drudge Report and The Huffington Post, just to name a few -- give citizens the option of sealing themselves inside an echo chamber of their own beliefs.
The official psychological term for this behavior is "motivated cognition" -- a tendency to bias our interpretation of facts to fit a version of the world we wish to believe is true. For instance, one study found that college basketball fans, viewing the same video of a game, were likely to believe the rival team committed at least twice as many fouls as their own.
And then of course the most depressing part:
Political beliefs are even more susceptible. Research has found that when psychologists confront political partisans with facts contradictory to their opinions, they become even more convinced of their existing beliefs.



