"How does twiggit work?
It's pretty simple, every so often we check for the last article that you voted for on digg, and update your twitter status to reflect this.

What does my twitter status change to?
If a new article has been dugg, we will set the title and a link to it on digg as your status.

I like this service but don't want to use it all of the time
That's no problem, by logging in to twiggit you can turn the service on or off at any time."