Krugman is a Natural Born Blogger.
You can tell just from reading his blog. It's especially important because he's blogging at nytimes.com. In that sense what he's doing is very subversive because he's an expert writing without interpretation by a middleman, a reporter. There's no one between him, the expert, and me, a person who wants access to his expertise.
He's a Source that Goes Direct.
I especially go for his angry pieces (like this one). What makes Krugman angry is the same thing that gets me going -- ignorance.
Ignorance becomes negative, however, when you ignore things that are important. Ignore the pedestrians in the crosswalk as you drive through it -- that's seriously ignorant, for you and for the pedestrians. Ignore that a weak dollar must be balanced by a strong currency somewhere is ignorance. It's just math. There's no way around it.
The same kind of reasoning applies to various systems. The news system is rebooting. That's the premise of a lot of my thinking. The political system is not rebooting the way I hoped it would. We're still voting against our interest, we're still giving money to people who use the money to buy votes so that they can take even more money etc etc We'll see tomorrow how bad it is, but they say it's going to be pretty bad.
I think the systems are linked. The smarter the news system is the smarter the political system can be. And the converse is true as well, until the news system gets smart, the political system can't. That's why the smart anger at a leading news place like the Times is a very positive sign. Krugman himself is good news.