Dorchester Publishing has put a lot of Jack Ketchum and Richard Laymon books out in e-book editions (nook, Kindle, and maybe others) -- and has placed many of them on sale for $2.99.
I am currently reading Jack Ketchum's Joyride because it was $2.99 and sounded interesting. I also bought one or two Richard Laymon books. However, it's hard to figure out which ones to buy, especially the Laymon books. Even fans can't agree on which ones are good. I try to read the reviews, but "professional" reviews (such as PW and Booklist) aren't available for all the titles, and some of the reader reviews amount to "This sucks because it's violent."