A heads up for those of you who use Windows Live QnA beta - apparently it's experiencing some difficulties at the moment:

(from the QnA blog)

Hi folks,

The QnA site is currently encountering problems, as many of you have undoubtedly noticed.  Please know that the QnA team is aware of the issues and is actively investigating.  We hope to have things rectified as soon as possible.

We thank you for your patience and understanding!

-DavidB, QnA Program Manager

A quick check of the site shows it up and running (although the link on the MSN Home Page didn't seem to work), although there were numerous posts on problems with the site, and clicking through to a number (but not all) posts returned "couldn't find this question".  We'll keep you posted.

Update: As of 6:30pm pdt (gmt -8) this evening, the qna team posted that things are getting better, but to keep hitting F5 if you don't get a page you're looking for.