I'm excited about the snapshot tool as a way to back up my personal writing clips. However, I'm wondering if these are saved to Diigo's servers or if I can backup snapshots to my own machine? Backing up to the cloud is nice if something goes wrong with my own machine, but backing up to my machine is nice as I can't predict the future of the cloud or Diigo (though, I really like Diigo and pull for its posterity).