Almost 7 in 10 US adults have made a clothing purchase online, making this the most common purchase of 10 identified categories.
More than one-quarter of US web users reported having purchased through an app store a game that could be played via any device.
While physical purchases represented 88% of total spending on Entertainment & Media content in 2008, that number has dropped to 73% this year, and will fall to 53% by 2017.
11% of internet users in the US say they regularly pay for digital content such as newspapers, TV programs, film, eBooks, music and smart phone apps.
About a third of men have purchased digital content via their mobile devices.