That misses the point. Word is out that the the ad was created not by members of any campaign staff, but by ordinary folks who like Obama and dislike Clinton. Here, I think, is the web's real power over politics. It's not in the candidates' ability to create viral videos and post them on YouTube, MySpace, etc. -- those always feel disingenuous, affected, and smarmy. We know who posted them, so we know why they make the arguments they do. They're not spontaneous, they're not true expressions, they're not labors of love. Besides, they're almost never edgy, funny, or entertaining. The only way Hillary is going to have an effective response to the pro-Obama ad created by everyday folks from the web community is if everyday folks from the web community create a pro-Hillary ad.
You see? Hillary can't respond to this because Obama didn't create it. The central test of YouTube politics is whether or not a candidate can inspire web-savvy users to create content on their own, with no prompting or support from the campaign.
Evidence: Multiple versions of the video of Hillary Clinton announcing her presidency (stilted, stiff, conventional) have been viewed a combined total of 20,000 times on YouTube, and currently have an average rating of three stars. Three versions of the Hillary/1984 video (creative, edgy, cool) have had a combined viewership of more than 1,300,000, and have an average rating of more than four stars. These are inexact, unscientific numbers, but you get the point.