<http://schema.org/description>
"Cloud storage services will often give away set amounts of free storage space as an incentive for users to sign up - Dropbox has offered free space amounts ranging from 25-50GB as part ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/asia/2013/08/28/think-dropbox-and-box-are-generous-chinas-baidu-and-qihoo-360-are-giving-away-1tb-of-free-storage/>