I was looking at the Q&A site on Windows live today.  There are lots of questions that could be found in TechNet Forum.  For example this question titled "Active directory (AD) and non exchange based EMail addresses" As a component of search, is this something that users would like see be a part of the MSDN and TechNet Sites?    I am curious, if as a extension of search would you benefit from a tool like this.  At MSDN and TechNet, we have strong audiences and I wonder if this is something that would be beneficial.  The guys at Search Engine Watch stated that they believe the "Question and Answer search engines are now the new hot social search thing."  What do you think?