J.A. Konrath is truly "The King of Kindle." He has been a advocate for eBooks and indie authors, offering a lot of information to fellow writers at no cost. Check out his blog to see the latest collaboration effort. Joe invited writers on KindleBoards to buy Draculas, the book he wrote with Blake Crouch, F. Paul Wilson and Jeff Strand, and in return he and Blake bought the writer's book and posted that book on Joe's blog.
I love ePublishing because writers help each other. Again and again, I see people sharing information, promoting each other, offering encouragement, discussing writing issues, even design book covers for very little or nothing. It's an incredible community. And J.A. Konrath is a leader.