Adjix

Adjix is a URL shortener - but with at twist. It's also an advertising network that wraps your redirected links with a small ad frame. If you create an account with Adjix and people view or click on your links, you get a share of the revenue. You won't get rich, mind you. But you can collect $0.10 for every 1000 unique views and $0.20 for each valid, unique, click-through. That might be hard to scale for some people, but instantly it give the top dogs on Twitter and others a way to monetize.

HiperLink: http://www.adjix.com/