Obama will be doing a half hour commercial on Fox, NBC and CBS tonight in prime time. I think this is a possibly fatal error. With as long as this race has gone on, I doubt Americans want their favorite show, or particularly the World Series, delayed with by yet another political ad. Obama could do more to alienate voters, at a time when he is far ahead, then to help himself. If Obama loses, this will be why!
Speaking of Obama's ads, they have appeared in very creative an unusual ways. I was watching an episode of "Life" on Hulu yesterday and Obama had the 15 second ads that run there. I understand he has an ad somehow in the latest Madden NFL video game (sorry, not a gamer so I can't say how it's used exactly).
I have Dish, and there have been a couple ads running that are regular length, but with a bug in the corner that says "click enter for details". If you click enter, it takes you to another channel, where you can view a more complete explanation of Obama's stand on the issue.
So far, I haven't seen or heard of McCain using any of these techniques. Of course, Obama has so much more money to spend, he must need to find new ways to blow it.