Publicity via YouTube?

Are YouTube videos an effective way to pique your interest in a book? Here is an example for A Fraction of the Whole by Steve Toltz:

Here is the accompanying blurb:

Most of his life, Jasper Dean couldn't decide whether to pity,

hate, love, or murder his certifiably paranoid father, Martin, a man who overanalyzed anything and everything and imparted his self-garnered wisdom to his only son. But now that Martin is dead, Jasper can fully reflect on the crackpot who raised him in intellectual captivity, and what he realizes is that, for all its lunacy, theirs was a grand adventure.

What do you think?  Is this a good way to use "new media" to get a book noticed?