Shorte.st - Smart and easy way to get extra income from your traffic.
adf.ly - Earn money for each visitor to your shortened links with adf.ly!
YOURLS - YOURLS is a website that contains all the tools you need to create and launch your very own URL shortener. URL shorteners like bitly or TinyURL are fine for public use, but they offer limited options in terms of URL customization.
Linkbucks - Earn $$$ for using a URL Shortener.
Polr - An open source URL shortener. A great non-profit and free alternative to bit.ly, TinyURL, or goo.gl.
Ow.ly - Shorten links, measure traffic, and demonstrate social ROI right inside the Hootsuite dashboard.