with synchronize
https://www.dropbox.com/ [1GB free]
https://www.sugarsync.com [5GB/free]
https://www.cx.com/ [10GB free]/ ΠΟΛΥ ΑΡΓΟ!
http://box.com/ [5GB free]
https://skydrive.live.com/ [25GB free]
https://www.amazon.com/clouddrive [5GB}
http://mozy.ie/ [2GB free]
https://spideroak.com [1GB free]