Shortened URLs are a great way to link to other websites, they look something like http://adf.ly/abc and they are a 'shortcut' for a real website address. When somebody visits a shortened link through adf.ly, they will see a full page advert on their screen for 5 seconds. Then afterwards a SKIP button will appear in the top right-hand corner of the browser and when the user clicks this button, they are automatically redirected to the real destination website. The best part about using the adf.ly service is that you get paid for each visitor that views an advert AND the user still gets to the real destination.
To create your own adf.ly links, just login to http://adf.ly with the details above and enter any destination website in the large white box - then hit the Shrink! button. Your shortened URL will now be displayed for you to copy-n-paste anywhere you like. You could replace links on your blog with adf.ly links to generate more money or use them on Twitter where space is tight. There are many possibilities to earn money with adf.ly links, just by placing them where you would usually put normal links!