I ran across MegaKarma.net today. MegaKarma is a 100% free service for submitters to popular news aggregators like Digg and many others. They help new users increase their ranking on sites. It works like this:

1. Sign up with a free account
2. Submit your link
3. If your link is accepted (ie. isn’t spam or a money grab) it is entered into the link queue.
4. You receive emails periodically containing links that other users have submitted.
5. You vote up the articles you like, spreading around the digital karma.