Stack Overflow
The Usenet of the 2000s? Nonsense, Usenet is the Usenet of the 2000s ;)
Nevertheless, I’ll be using that, if it picks up it could become a powerful tool. Let’s hope it at least kill Expert’s Exchange (ugh!), but unfortunately, I’m already seeing stuff that is in the realm of opinions, not Q&A.
UPDATE: as I was posting this, the question was deemed as “not programming related”, and closed right away. Nice!