I had an account with Microsoft SkyDrive that I utilized for some backups. I got on the website the other day, and saw an offer to receive 25 GB of online storage. Needless to say I took it. https://skydrive.live.com/
I download the PC app, which automatically syncs files with the online storage. You control how it syncs. In my case, it created a directory under my user name, then sub-directories for files I want to save. I copy the updated files to sub-directory, and the SkyDrive app copies them to the SkyDrive server. It seems to work pretty well, plus it's free!
Take advantage of this!