One of the things to do is find free books. So the guys at Baen are so cool that they will give you lots and lots of free books. They also run this cool promo on their newer books where if you buy a set of books called a Webscription you can send an invitation to another email address so that they get that same set of books for free. This must be an email address that Baen doesn't have on file. See this link at Mobile Read to get in line to get your free books. Baen is a Sci-Fi and Fantasy publisher so all of these books will be in those genres.