Early on Stackoverflow was a great place, because you could ask any programming related question and you basically got a good answer or someone pointing you in the right direction quickly. Nowadays you first need to figure out where to ask. For some reason too granular classifications seem to be connected with programmer mindset. Also earlier lot of subjective and interesting questions were allowed, nowadays anything like that is closed quickly.

That said, nowadays I mostly browse ux.stackexchange which isn't as nitpicky yet.