Don't miss the intense and heartfelt discussion underway over at DailyKos between Markos Moulitsas and Zack Exley, formerly the Kerry campaign Internet director, and before that one of MoveOn's brightest organizers. It started with Kos calling Exley an "idiot" based on comments reported by noted net contrarian Andrew Orlowski. Exley's detailed response (entitled "Dear Markos and friends," a far friendlier headline) appeared on the site a few hours later. Many smart comments from people who worked in the trenches are attached to both missives. Matt Stoller has been working this vineyard too on the Blogging of the President, here and here. Many lessons to be studied and learned...And one cool note to consider: we're transfixed by a terrific debate between two guys whose average age isn't even thirty!