[mercurio]

Nice idea. Made me think of tinyurl, so thats good. But this is just as easy to replicate, which makes me think of the hundreds of tinyurl clones. If you take a look at how those clones tried to distinguish themselves from tinyurl and what features they added, it might give you some ideas on how to add value to your site. Might let you stay ahead of the inevitable competition if people find this useful.

Also, a pro user would want to integrate this into some other service. So you should consider providing a simple request API call that returns the feed address. You should also consider not charging any money initially and focus instead on building a userbase.