Associated Newspapers
According to Political Betting via The Guardian, (and I've heard it from an even more reliable source) the Associated Newspaper group are straining every sinew to do David Cameron in this Sunday.I have little expectation, but I hope Conservatives who in the past have been staunch supporters of the Daily Mail, and indeed Cameron himself, remember this behaviour in years to come and indeed, learn from Stanley Baldwin, who in Ross McKibben's words, did: "never take any notice of the Daily Mail and, when stuck, publicly abuse its owner"
Update: One supposes the Davis camp is behind much of this, with David Davis today oddly saying that any "recent" users can't be PM. I guess we'll find out why he said that, but it's not something you can take back, so if all these hints are true presumably this statement rules him out of any Shadow Cabinet position under Cameron.