So, a good place to find these early adopters?, well - hacker news for one! ... but other places? I'm wondering if there's a thread dedicated to this topic on

So, a good place to find these early adopters?, well - hacker news for one! ... but other places? I'm wondering if there's a thread dedicated to this topic on HN?, and if not, if it would be worth starting one? i.e. early stage app promotion/making your app seen by the right people ...