b) Guido Fawkes
In case (a) it is because of Cory Doctorow's hysterical rantings. It is not that I can't see where he is coming from, but it is the sort of 6th form 'the sky is falling, the sky is falling' stuff that suggests that he needs to grow up / get a clue.
In case (b) it is because whilst he used to have worthwhile scandal it has generated into a rather pointless Tory blog. Some will no doubt claim that he is apolitical / an anarchist / a libertarian, but I think the façade has dropped. That would be apolitical with a big C, then. My gut feeling remains that, for good or ill, these odious Tories (and the odiousness is amply shown by the comments in the blogs of Fawkes Esq. and Iain Dale) are going to get a big shock at the next election.
So, anyway, if you read either and there IS anything worthwhile in terms of scandal (preferably of a sordid nature), dead-tech, sex with dead animals (*) do let me know because I don't want to miss out.
(*) The subject of sex with dead animals comes up more than you might think. There really ought to be a word for it (necro-bestiality?).