Andrew Ferguson's answer is the best, naturally. But this passage sticks out in particular:
Under the circumstances, it's not much of a surprise that the threshold Buckley tried to maintain has collapsed. I suppose any philosophical tendency, as it acquires power and popularity, will simplify itself, define itself downward. That's democratic politics for you. But something more corrosive is also at work. Marshall McLuhan was righter than anyone ever would have guessed. The medium really is the message. Conservatism nowadays is increasingly a creature of its technology. It is shaped--if I were a Marxist I might even say determined--by cable television and talk radio, with their absurd promotion of caricature and conflict, and by blogs, where the content ranges from Jesuitical disputes among hollow-cheeked obsessives to feats of self-advertisement and professional narcissism (Everyone's been asking what I think about . . . You won't want to miss my appearance tonight on . . . Be sure to click here for my latest . . . ) that would have been unthinkable in polite company as recently as a decade ago.
Who on earth could he be talking about?