Awesome. I've been hoping Amazon would do this, since Google or any of their competitors were too shortsighted to do this for books, even though it was their only chance to disrupt Amazon and actually take some market share in ebooks from them. But once again, Amazon is the one innovating and disrupting itself, even as an almost monopoly.

This should be great for people who want to read a lot of books, and could even encourage people who only read say 1 book per year, to read a lot more.