[marc0]

I'd say you should shift your point of view. You say: you made an app and now you need the community for it. That's the wrong order. In your case, the community is the most important thing, and the app is secondary. So, go and find an existing community and turn it into 'your' community (hard!), or build a new community from scratch by focusing on a narrow class of customers (even harder!). Third alternative: buy a community, if you got enough vc ;-)