Usually for work-related questions it's faster to find an existing answer than to ask a new question and wait for replies.
This. It's pretty much just Google for me nowadays. If I can't find the answer Googling then chances are I'll just have to figure it out myself.
Stackoverflow was a great solution to the problem of forums, but I also find that the community is showing cargo cult behaviour and quite a lot of snobbery about what questions and answers are acceptable. Still its the best solution I have seen so far, but its not somewhere I go to hang out and chat.