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1.
Major television networks and newspapers. Most mainstream media outlets are biased right or left but pretend to be neutral. Abreviated msm
I used to watch CNN, but i got tired of mainstream media propaganda
door spantheman 20 juli 2008
 
2.
Any broadcast, print, or online news sources that Sarah Palin disagrees with.
Any type of media that isn't run by a fringe right-wing or left-wing blogger is considered to be mainstream media.
door Publius 9237 19 september 2010