I've tried this plugin for all of 2012 and on some of my websites it works just fine and on large websites it dies with an error from Dropbox for I guess too large files - just a guess.
So now I'm trying Google Cloud and this plugin wants:
I've spent 30 minutes trying to figure this out from my Google Cloud and have given up.
Is there a Google Cloud for Dummies anywhere? Help on Google requires a PhD in computer science.