Amazon have acquired Goodreads, who have a platform that is great at suggesting books to users. Amazon have announced previously that they were acquiring one or more popular reading recommendation engines, without any clear plans on what they were going to do with their acquisition.
We can piece together that the retail giant is looking to help their Kindle reader line, as well as their array of Kindle apps. Amazon's vice president of Kindle Content, Russ Grandinetti has said "Goodreads has helped change how we discover and discuss books and, with Kindle, Amazon has helped expand reading around the world -- together, we intend to build many new ways to delight readers and authors alike." The two companies are expecting the deal to be finalized in Q2, which isn't too far away at all.