@Amazon Prime members are increasingly signing up for the free two-day shipping (74% in 2013, 78% in 2015). Once an online book retailer, Amazon has become a digital media ecosystem with its Prime program offering free streaming of select TV shows, movies, and free cloud storage for photos. While the Prime program encourages members to adopt Amazon as their platform of choice for digital content, less than 10% of Prime members signed up because of such. - Link