Our start-up site will use a listing of product/service categories. I want our site's community of members to decide what categories/subcategories get added, as well as, other aspects about each item. It's a wiki approach where individual small pieces of content come together to create a larger output, almost like wikipedia, except I want people with the highest reputation to be the ones that control the ultimate output.
So, I invision a solution that is kind of a combination of StackExcahnge's reputation-based governance and Wikipedia's approach to numerous members contributing different pieces of a larger product.
I have to imagine that this is already out there - built and ready to use.
What solutions are out there that I can use instead of building from scratch?
Who is already doing something like this (even if it's for something other than product categories)?