Backup with Dropbox

In addition to being used for document sync, dropbox can also be used as an online backup service.

Dropbox sync stores a copy of all your documents in dropbox servers, you can at any time access your dropbox folder on the web from any computer or install dropbox on another computer to recover all your files. No matter what happens to your current computer.

Dropbox keeps a copy of all document or folder that you edit or delete during a temporary period of time, which allows you to undelete a file or restore a previous version of a document at any time.