Anyone know any good websites or programs to keep track of e/virtual book sales? I have an Ipad and want to pick up more kindle and app store books but I find frequently that they cost more then just buying the actual physical copy of the freaking book! Hoping that maybe there are some sales to take advantage of but so far Appshoper is the only thing that I have seen that tracks them and 90% of the time the stuff is junk kids books or asian books.