Big thanks to Long Zheng for the great write-up on the MIX Online re-launch.  He brings up a great point about the site:

In fact what’s pretty amazing is that the “MIX Online” site is validated 100% XHTML 1.0 Strict compliant. That’s something worth noting for a Microsoft site.

My fellow Designer/UXE, Nishant Kothary, really drove the build and design of the MIX Online site, and had strict compliance as a priority 0 issue.  The site had to validate.  He worked with the “Evangelism Network” team go get this built on their platform and deployed close-to-flawlessly.  Big props.