I’m going to go out on a limb here and guess that you have at least head the name Dropbox. I personally use Dropbox to sync my files and I love it. For me it is the perfect solution as I have multiple computers that need to have files synced across them. I know there are other online syncing services out there with more security or more space but for me Dropbox works. For people who don’t know, Dropbox is a service that allows files that are put into a specific folder on your computer to be uploaded to the cloud and then downloaded and synced to another computer in the same fashion. If you have multiple computers then I would recommend that you check Dropbox out.