Box.net gives 1GB of free online storage; you can access it from everywhere. I use them to back up important files like ebooks my college notes other imp things.
A make there is a very uncomplicated method to mount your box.net description. Go to Places >>Connect to Server:

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Following dialog box appears:


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Enter your username. You can type whatever thing you would like for the “Name to use for correlation” textbox.

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Double-click the icon, and authentication dialog box come out then enter your valid Username and Password:

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Now you should be able to access your account.