Business Listings Directory

Hi there

I have been looking for some time now into how to get a really good Business Directory working on my sites, without typing in lots of info myself and/or creating separate databases.

Then it struck me that if the users profile page could be tweaked then it could form the basis for a business directory. The are some plugin out there that offer extra fields such as user Photo etc. If fields could be added for categories all that would need to be done would to be able to display (somehow??) these businesses by category and….Hey Presto! A business directory! These businesses can then be emailed etc using various other plugins

I hope I am making sense? No one has seem to have done anything like this yet. I am wondering why? Am I missing something?

Best regards

Chris