Big Media being the viacoms, the turners, the comcasts -- big corporate congloms that currently control the airwaves. From cable news, to network news, to sitcoms to dramas, "Big Media" is in full scramble mode trying to figure out how to keep the current system in place. But they're losing the battle and everyone knows it.
From Netflix, to YouTube to Hulu to the blogosphere, younger viewers/readers are turning away from traditional media outlets (cable, tv, print journalism) and getting their information and entertainment from the interwebs. As the older generation begins to die out (myself included), the younger generations aren't going back to traditional media. Network TV is dying, cable TV is beginning it's death spiral, print is already dead.
Point being, with more people turning to outside sources for news, there is less control of information by the Big Media -- the ones who have the most money invested in our current string of politicians. This certainly leads to a lot of misinformation (people who cite Drudge or Maddow's blogs as solid news sources) but it also leads to true intellectual freedom with things like Wikileaks.
20 years from now Big Media will be all but gone. There will be a vacuum that will have to be filled, but the power and freedom of information on the internet will change the game for the younger generations, for better and worse.
It already has.