Rupert Murdoch will attempt to charge for News Corp on-line content. Since a good 25% or so of the posts out of the AGW denio-sphere are just links to the crap peddled by The Australian and other Murdoch publications, we will presumably see a content drought within the next year or so as people decide it just ain't worth paying for that shit. They're self silencing, in other words.
(PS. Making the success of the firewalled Wall Street Journal your business empire's paradigm seems a terrible mistake. Once you get past the crazies on WSJ's editorial page, there's actually some useful information in there. Not so Fox on-line.)