Ezra Klein is shutting down Journolist:

In any case, Journolist is done now. I’ll delete the group as soon as this post goes live. That’s not because Journolist was a bad idea, or anyone on it did anything wrong. It was a wonderful, chaotic, educational discussion. I’m proud of having started it, grateful to have participated in it, and I have no doubt that someone else will reform it, with many of the same members, and keep it going. Hopefully, it will lose some of its mystique in the process, and be understood more for what it is: One of many e-mail list servs where people talk about things they’re interested in. But insofar as the current version of Journolist has seen its archives become a weapon, and insofar as people’s careers are now at stake, it has to die.