I recently enrolled Underwear Probation in Kindle Direct Publishing Select (KDP Select). What this means is that if you are an Amazon Prime member you can borrow Underwear Probation (and thousands of other titles as well) for free.
I'm not an Amazon Prime member (though I might become one) and I have no opinion on whether this is a good program for you to join or not. But, if you are a member, I'd be curious to hear what you think of it.
And don't forget that the 100K giveaway is still going on. So leave a comment to be entered in the drawing for a $10 Amazon gift card.