Have a look at Dropbox. It’s well worth investigating if you want to get free backup or synchronise the contents of 2 devices. You install a small bit of software on your PC and it creates a “dropbox” folder within your Documents folder. If you place any files into this they are synchronised with your Dropbox account on the web (the backup bit).
If you have a second device (PC Mac or iPhone) you can download and install the software again and the system synchronises this Dropbox folder with your web folder – synchronising the 2 device’s. The software is free for up to 2GB of storage.
Click here to go to the Dropbox site.
You can view a short video and will be asked to set up an account and download the software.