Who are also FireFox users (fight the powa!), I bring you Book Burro – The Firefox Book Agent. Book Burro will automagically scan the web for the lowest price of whatever book you are looking at. It will even look up the title in a few libraries. Of course for John, BB is almost useless since he trolls the local Half Price Books stores and they don’t put their inventory online. But it just might be useful for the rest of us.