You could then differentiate your service I'm don't think there's any room for differentiation left in the tinyurl space. There are literally hundreds of such

You could then differentiate your service I'm don't think there's any room for differentiation left in the tinyurl space. There are literally hundreds of such services and some of them work without an UI altogether (see the firefox addon for http://is.gd http://is.gd). Maybe, just maybe, you could set yourself apart by integrating tinypic, tinyurl and tinyvideo(?) or such into a neat package, and adding some whipcream features on top - but honestly, I'm very doubtful that there's any money in this.