All of the books that they tell you about are ebooks. It can be for kindle, nook or whatever device you have that you would like to use. When you sign up, which is free, you get to put in your preferences. There are your book preferences as well as device preferences.
This website is... Book Bub.
Now that you know what this website can do for you, you should check it out!! Just click on the website name above and it will take you to the website...
Let me know if you have any questions or would just like to share any websites you use to get your books. Wether free or not I would love to know!