Daniel Drezner has co-written a

nice article for Foreign Policy magazine regarding the influence of blogs on foreign policy here and abroad. While you're there, take some time to read any of the other excellent articles on the site; it's worth it. (This is where I would credit the blog where I found the link, but I can't for the life of me remember where, and my RSS reader has pushed the entry off the bottom of the currently valid list. I figure it was probably InstaPundit, but I'm not sure.)