DROPBOX

Dropbox is a file to Dropbox, Inc., which uses cloud computing to allow users to store and share files and folders with others over the Internet using File Sync. It was founded in 2007 by Drew Houston and Arash Ferdowsi.
  There are both free and paid services, each with different options. Compared with similar services, Dropbox offers a relatively large number of customers the user through a variety of operating systems and desktop phones.

Their website is: http://www.dropbox.com