BTTT
This may be an unintended consequence of the Memogate scandal: News organizations don't want to get scooped by bloggers, so rather than just parroting other outlet's news, they actually (gasp) investigate it.
There's a limited market. News orgs start slamming other orgs in an attempt to increase their market share. The by product is that we actually get news orgs policing themselves.
Score another victory for the Pajama Patrol.