This whole think of real world authority vs. Google authority is driving me nuts. You'd think that having sold several hundred thousand books around the world would be worth something. But it's not.
I posted a question about trying to "claim" third party sites via rel tags, so for example, I'd love to claim my amazon author profile. But guess what? Doesn't appear to be any way to tell Google: Hey, the guy who wrote all those books is the same guy that runs this or that website.
Amazon doesn't allow links in its author pages, and Goog doesn't offer a way to validate the rel=author tag ownership thing.