Amazon OWNs 3 patents–and Web 2.0?

lislemck writes The Register has a story on how Amazon may own “information as a conversation” along with all of those reviews.

Isn’t it interesting that this all revolves/evolves around books, that supposedly dying medium? They are driving this technology, the reviews, the patents. So owning Web 2.0 comes down to thinking hard about books. I almost want to say “yeah”, but I’m worried about the effect of the patents on reviews on Open Worldcat, et al.”