The site ServerFault has just gone public. This is a new project from the folks that brought you StackOverflow. It is a place for SysAdmin types to ping each other for questions, in a format that's very google-friendly. Handy when you're googling for a strange issue. It has a reputation management system that looks pretty good as well. Very nifty.
The most frustrating thing about this site is that there's a minimum reputation needed to vote up or down. I understand why it is there, but it's still frustrating.