Saw this at Threadwatch and was very impressed. There's a new site called Ning that allows users to easily create their own social apps, such as restaurant reviews, photo sharing, hot or not, and more. They provide example apps that users can clone and make their own (such as restaurant reviews in their home town). It's a really cool service that really helps underscore what I was discussing in my last post - being the first to do something.
Maybe someone else has already done this kind of thing, but if so, I haven't seen it. In any case, they are sure to get some decent links for offering such a unique service. Makes me wish I had thought of it first! 🙂