Head over and check out Kindle First !! This is a new service from Amazon that allows you to choose one free book each month. These books are selected from various genres by the Amazon Publishing editors. I've already grabbed mine for November!
Here's the low down from Amazon:
Kindle First is a program that offers customers early access to new Kindle books across popular genres from Amazon Publishing.
So not only do you get a book for free each month, Amazon will also send you an email reminding you to go grab it!!
Head over here: http://www.amazon.com/gp/digital/kindle/botm/ and sign up for Kindle First today!!