When you search the net for SharePoint answers, how do you know if what you find is a good answer or not? Sometimes a post that’s been around a long time comes back much earlier in the results, even if newer and better approaches have been documented or discovered.
Into the fray jumps StackOverflow.com where people can vote answers up or down. This site is targeted mostly at developers, but even though it only launched recently it already has over 200 SharePoint questions many of which are not directly about programming.
Some of the nice features are how the site is very reputation driven: People who have built up more reputation have the power to do more things, like edit questions or answers; answers that become outdated can be voted down, allowing better answers to float to the top over time.