an online storage application (free 2 GB account). It comes with a bit of software that makes your online folder available offline, so you can use it like any other folder on your PC, and any changes you make to it are reflected in the online folder. You can share folders too, so if someone adds/deletes files this is changed in your local folder too. Works great, we use it a lot for university collaborations. Note that if you want to work in the same file at the same time you should take some care. Dropbox usually creates conflicted copies when this happens, which you have to merge manually. That would be a problem with Cubase projects probably.