Book Cave sends notices to your email inbox about free or discounted ebooks according to your chosen genres and content preferences (also called content ratings: All, Mild, Mild+ Moderate, Moderate+, Adult). All offered books are reviewed by us to assure quality reads. We also put promotions on Twitter and Facebook, so look for us there.
We use the My Book Rating system, which has been unique to our site and My Book Ratings site. We hope you enjoy the concept of content ratings for books as much as we do. You choose your movies with content ratings, and it's time we have some kind of idea what we're reading before we crack a book!