URLShorten Class (update)
URL shortening is a technique where a provider makes a web page available under a very short URL in addition to the original address. There are hundreds of provider out there, but only a few of them provides public api and crossdomain.xml. I put toghether some of those that work and URLShorten class was created 
feel free to use it and enjoy
Update: jdem.cz, tinyurl.com, bit.ly, tr.im, is.gd providers implemented.
