NetFlix for Books?

Yep. At Booksfree you can pay a monthly fee and borrow from a library of 40,000 paperbooks and return them when you're finished. Seems like a good deal for someone who doesn't have easy access to a library. They also have audio books. Prices range from $9.99 for 2 books at a time to $37.99 for 12 books at a time.