Sifters, I highly recommend the popular service Dropbox, which gives you 2 gigs of free online backup, and makes it very easy to sync files between computers (Windows, Mac, Linux, iPhone).

If you want more details, there's a review here.

If you get Dropbox from the following link, you'll get a bonus extra 250mb, and so will your friend Chilaxe : https://www.dropbox.com/referrals/NTI2NzE5MzE5