Dean is Doomed
I think Dean is doomed.
Why? Because he flared too soon.
The Internet may keep his core alive, but he'll need more then that to win the nomination, let alone the Presidency.
No political reason, just a structural one. His recent problems with things he said is, or perhaps more accurately, the recent reporting of bad things he's said, is just a sign that his star is setting. In other words, that's effect, not cause.