I missed this major Vimeo news last week. Vimeo now allows you to automatically upload your videos to Vimeo by simply choosing an auto-upload folder and placing your video in it. As it finishes syncing with Dropbox, Vimeo automatically uploads it too.
This is sure to make the workflow of a lot of people simpler. I know a lot of producers who stash away the final render on Dropbox anyway, so this feature will be definitely welcomed by them.
You can connect your Dropbox account to Vimeo here.