Put your files into your Dropbox on one computer, and they'll be instantly available on any of your other computers that you've installed Dropbox on (Windows, Mac, and Linux too!) Because a copy of your files are stored on Dropbox's secure servers, you can also access them from any computer or mobile device using the Dropbox website.
Every time you put a file in your Dropbox folder it is automatically backed up to our secure servers. If your computer has a melt-down your files are safe on Dropbox and can be restored at any time. Our free 2GB account is perfect for backing up your documents. We offer larger accounts (up to 100GB) for backing up your music and video collections.
Dropbox lets you go back in time to undelete or undo changes to files.
If you singup with this link you will get 250Mb more for free: https://www.dropbox.com/referrals/NTMyNDQ3MDI5
It's compatible with Windows, Linux and Mac.
Try it, you won't be dissapointed! .