Thriftyapp

This is a new site so On Read’s selection isn’t tremendous but you are able to read modern books online for free.

On Ink Mesh, you can “find free ebooks and compare ebook prices for the Kindle, iPhone, Nook, Sony Reader and more!”

“Swap Tree is a place where you can trade books, music, DVDs, or video games for thousands of items that you want for free.”

List the books that you’re willing to trade, send them out, and request books with the points that you have earned on Book Mooch.