Starting today, Governor and Presidential candidate Howard Dean will be guest-blogging on Lawrence Lessig's blog. The Dean campaign has been surprisingly 'net-community-saavy from day one, including a Meetup.com monthly gathering of supporters and an official blog, blogforamerica.com. The official blog uses MovableType, supports comments and TrackBacks, and links to other blogs in the sidebar. You know there's a clued-in old school blogger driving that train.