Stacking The Shelves is all about sharing the books you are adding to your shelves, may it be physical or virtual. This means you can include books you buy in physical store or online, books you borrow from friends or the library, review books, gifts and of course ebooks. It is hosted by Tynga's Reviews.
I bought a couple of books on Amazon. I got Dreams of Gods & Monsterd by Laini taylor. I preordered two books (not going to say what they are, but they come out on Oct 1 and Nov 3. I also got a kindle case.