Jeff Jarvis is tracking the use of video in the 2008 presidential campaign on his new site PrezVid.

On a recent video post Jarvis gives advice to John McCain:

McCain’s videos may be ready for prime time, but not for YouTube. He doesn’t speak directly to those of us who are clicking; he speaks off-camera, as if this were an interview, or he speaks through music and polished production, as if this the video were intended for the giant screens at a nominating convention. He doesn’t yet understand that this is a conversation, one-on-one.

I'm looking forward to seeing more video analysis from Jarvis.