The Samhellion, the newsletter of Samhain Publishing, has a wonderful feature--Discover New Authors.
Readers can download the first half of the book for free. That allows them to get a sense of the author's writing style and to see if they might enjoy the book. If they want to finish the book, they can purchase it. If not, they're not out any money.
This month, I'm one of the featured authors.
You can download the first half of my Jamesville book, The Seduction of Shamus O’Rourke. Just go to the Discover New Authors page of The Samhellion.