StackOverFlow.com is Open, and it's Great
If you haven't heard about it, Stack Overflow is the new baby of Jeff Atwood and Joel Spolsky. The concept is as simple as it can be: creating the most massive programming FAQ in the world. Questions are asked, answers are given, and the best answers appear on top.
I was in the private beta of this site, and I can be a witness that this works really well. Never was there a forum or a newsgroup in which I asked a question about programming and received good answers so quickly. Also: the simple-yet-clever UI of Stack Overflow can teach all a meaningful lesson. This is how web-sites should be built.
The public beta has launched today, so go ahead and give it a try.