As probably the only person on the whole wide internets that likes Bob, Brad, and Paul, I feel obligated to relink.
1. Brad DeLong
2. Bob Murphy
3. Brad DeLong (ouch!)
4. Paul Krugman (OUCH!)
I obviously agree with Brad and Paul a zillion times more often than I agree with Bob, but let's put that aside for a second. I didn't get involved in the initial post by Bob because I've been busy and it looked like an in-the-data-weeds sort of post. But also because I doubted it would amount to much. Paul Krugman tells us that the CBO is not stupid. This is true. They have some really smart people there and dumb mistakes simply aren't their thing. But it is even more true that Brad DeLong is one of the most careful bloggers out there. IMO he passes Krugman in this regard. Krugman has a tendency to make sweeping statements, get grouchy about the state of economics, etc. which leads him to make broad claims sometimes that don't hold up. Brad is more careful than Krugman in that sense.
Another way of putting this is that Brad is a great details guy in his posts and Paul is a great big picture guy in his posts. I feel like I disagree with Brad sometimes too - but I feel like I take my life into my hands when I do.
That having been said, I will still push the hopeless line that Keynesians ought to follow Bob's blog. Unfortunately, a lot of Austrian bloggers don't offer much interesting. It's complaining about vaguish methodological concerns. Bob, meanwhile, doesn't raise some kind of purist methodological objections - he jumps into mainstream modeling and keeps up with the best of them (Nick Rowe, for example). Bob also doesn't really have any sacred cows. He's happy to knock Mises and Hayek on substantial points and not only agree with Sraffa but claim that Sraffa didn't go far enough. And he's a clear writer. He's too obsessed with Krugman gotchas IMO, but nobody's perfect. I'm sure there are things about me that bug people too. So I enjoy following him.