<http://schema.org/headline>
"Dropbox hits 175M users, now gaining 9.4m users a month and saving 1bn files a day"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/insider/2013/07/09/dropbox-hits-175m-users-an-increase-of-75m-in-8-months/?fromcat=all>