What needs to happen is for some people to in authority to start "mining" blogs for good ideas, not just cash.
The right-wing model is a Microsoft model. Be the big player on the block, pick your message, and pound it mercilessly until everyone caves and believes that it must be right.
The counter to that is an open-source model. Many eyes debugging whatever issue or problem is out there. I've seen many great suggestions here, on dKos, etc., that just need someone to pick them up and run with them. But the DNC isn't doing that. (Winning Argument and the Center for American Progress have made some steps in the right direction.)
MoveOn had the right idea with the "Bush in 30 Seconds" contest. Why pay expensive consultants to put together the same old political ads? Why not have a contest with thousands of entries and use the best ones as decided by the people? You've got built-in focus grouping.
Democrats need more of this thinking, not less.