Came across this URL that breaks down the success metrics for a winning title for Digg.com.
It can also reveal the keyword effectiveness, see that here.
Dan Zarrella is a viral marketing scientist, and the title check for digg can be found here.
It will make you think about how to create more compelling titles, and let you see what Dan says should work for you, based on previous entries and keyword use.
If you are really hard-core Digg’ing… you should get the Digg alerter. You can download that tool here. (Windows)
To stay on top of more stories that may hit front page and go into “hypermode” – use http://socialalerter.com/