I would add Max Sawicky as a bomb thrower. It may be good to see if we could add a conservative as well to get a counterpoint, not there is any shortage of disagreements among progressives, to add credibility for others watching who may not be from our "choir."
Video? Okay, as long as there is a full transcript to accompany it since some concepts may be more easily digestable in written form and because not everyone has a high-speed connections.
Forum topics? I would like to see some micro-level analysis because, on the face of the participant recommendations so far, we could end up with all macro-.