<http://schema.org/url>
<http://gigaom.com/2010/11/08/419-why-the-book-business-may-soon-be-the-most-digital-of-all-media-industr/>
<http://gigaom.com/2010/11/08/419-why-the-book-business-may-soon-be-the-most-digital-of-all-media-industr/>