The MIX conference is a major Microsoft conference on web development and design. It was run in Las Vegas last week. I didn't get to go. Probably you didn't go either. The good news is that most of the sessions from MIX are now online for on demand viewing. You can view these sessions here.
Interesting interview with Steve Ballmer done by Guy Kawasaki here BTW.
More on MIX from the web site:
"On the frontiers of the Web, boundaries are blurring—developers and designers, advertisers and publishers, software and services, media and technology, TV and PCs, PCs and mobile devices, producers and consumers. The old order is getting a little MIXed up.
MIX is an ongoing conversation between web designers, developers, and business decision makers. We showcase topics and solutions that bridge Microsoft and non-Microsoft perspectives, and emphasize the inclusive and participatory nature of the next web."