[garzuaga]

Ideally, Programming Questions -> StackOverflow | Business Questions -> Startups.com. Online communities are, in a way, like physical spaces (bar, restaurants, etc). You like one over the other for different reasons: maybe the music, the drinks, the food, the host, maybe your friends hang out there. We'll see how this plays out. Competition is always good because it forces you to think more and more about how to server your customers/visitors better.