It looks as if Robert Scoble (along with Shel Israel) are challenging themselves to write a book on business blogs. Presumably, it will be entitled The Red Couch.

Of course, the de facto BEST BUSINESS BLOG BOOK OF ALL TIME is Buzz Marketing with Blogs for Dummies being written by Susannah Gardner (she let's me call her Susie). I'm the technical editor for it so, heck yea, I'm prejudiced. By the way, it's available for pre-order right now on Amazon.com.