eReaderIQ.com scans Amazon for free eBooks, price drops and other items of interest to Kindle owners and also Nook.
Each day you get an email with links to all the new additions to the Amazon store which are free, each link having a short synopsis and icon of the eBook cover. Some days there are only one or two, some days there might be a couple of dozen. Of course, many are not going to be of interest, but since getting my Kindle a few months back I’ve been pleasantly surprised at some of the gems I’ve uncovered here. As an avid reader I’ve always had a houseful of books and spent far too much on new ones, but my book spend has decreased significantly since finding this site, and my shelves are not having half as much new weight added to them. Bad news for my local bookshop, but it means the baby gets fed :).