Here's a pretty interesting Wired magazine round-up on military webloggers serving in Iraq. One detail I did not know:
For now, the Pentagon officially tolerates this free-form online journalism and in-house peanut gallery, even as the brass takes cautious steps to control it. A new policy instituted this spring requires all military bloggers inside Iraq to register with their units. It directs commanders to conduct quarterly reviews to make sure bloggers aren't giving out casualty information or violating operational security or privacy rules. Commanding officers shut down a blog that reported on the medical response to a suicide bombing late last year in Mosul. The Army has also created the Army Web Risk Assessment Cell to monitor compliance. And Wired has learned that a Pentagon review is under way to better understand the overall implications of blogging and other Internet communications in combat zones.