Here's a relatively new site that offers something for both readers and authors. The Fussy Librarian offers you free personalized book suggestions based on the type of content you prefer. Many sites allow you to specify your favorite genres, but not all of them will filter books according to the levels of sex, violence, and profanity you're willing to tolerate (or enjoy). After you fill in your preferences, you'll receive e-mails whenever the Fussy Librarian finds a possible match for you.
Authors can currently get free promotion of their work by helping spread the word about this site. Eventually the site will start charging for listings, so it's wise to get in now. To find out more, click here.(And in case you're wondering, I do have a promotion for Lyon's Legacy scheduled for Saturday.)
Happy reading and promoting to all!