So, you can read all those tomes you've picked up through Google Books offline on your smartphone and tablet, but what about on your laptop? Well, if for some reason you've got the desire to power through Finnegans Wake in your browser (though, we're not really sure why you'd do that to yourself) we've got good news -- the Google Books app for Chrome now caches your titles for local reading. To download a book, just hover over the cover in library view and select "make available offline" from the pop-up. Then, even when you can't get your