Cloud-based file syncing services like Dropbox and Box.net have really taken off in the past few years. One of the newest on the scene is Cubby. Download the app to computers and mobile devices, make any folder a “cubby” and share unlimited data between your own computers, or use the My Cubby cloud folder with 5GB of storage. You can also collaborate with others by sharing folders. It’s currently in Beta, so if you’re interested, sign up at the Cubby main page for an email invite.