Google owns you – Google Docs: Sync, Edit, Share Review

Great convenience comes at a price. Use these services, but always create a copy. I learned the hard way that everyday that you use this without any other backup, you are risking all your work. If you get your account hacked or lose your password or any other mishap, google will deny you access to your work. Pretty much forever. Beware, and use with caution.
Review by paypal's angery pal on Google Docs: Sync, Edit, Share.