Ultimately what Google has done is transform libraries into bookstores. They've done this quite literally, by digitizing the contents of several libraries and turning them into revenue-generators. They want to sell these books; and failing that, to sell ads against them. At the same time, they are already in the process of building a massive, free archive of rare and public domain books. And they're making them available to anyone with an internet connection.
A further, exhaustive list of media links and references is collected at the Google Book Settlement Bibliography.