Here's something that surprised us. Apple dominates in U.S. cloud service usage with iCloud.
According to Strategy Analytics, via Engadget, more people say they use iCloud than any other cloud service. This is most likely due to Apple pushing iCloud as a part of iOS.
Still, given all the hype around
Music is the primary thing people are using with cloud storage services.
Disclosure: Jeff Bezos is an investor in Business Insider through his personal investment company Bezos Expeditions.