Here's a cool little service I stumbled upon this evening (thanks to the Big Bad Book Blog). Bookwrap Central features video clips of authors talking about their book, what's unique about it, what inspired them, etc.
I like the idea but I have a hard time envisioning success as a standalone service. If I'm looking to buy a book online I go right to the vendor (e.g., Amazon, B&N, etc.) No matter how compelling the video content might be I'd almost never think to visit Bookwrap first. And while you can buy directly off the Bookwrap site, they'll probably never have the breadth and depth of Amazon, for example.
Wouldn't this be a cool new feature for the online bookseller sites though? I'd almost always click on a video or two as I'm making a purchase decision on an Amazon page, for example. If you're annoyed by that sort of thing you would simply avoid clicking on the play button, but I'd get a lot of use out of it.
Widgets represent another excellent opportunity for this service. I use the LibraryThing widget on my blog but the covers are fairly static objects on the screen. I'd love to see LibraryThing integrate a video feature like this so that you could click on one of those covers and a small video screen would pop up with the author telling the story behind the book.