MIX08 session recordings are available online
If you could not make it to the MIX event this year you can still follow on a lot of content presented: all session recordings are available online. Lots of them are even online in less than 24 hours.
Go to the MIX 08 Sessions site at http://sessions.visitmix.com/ and watch some of the great content.
The keynote today with Guy Kawasaki and Steve Ballmer was really fun today, if you did not follow the live streaming check back on the MIX site as it will become available soon.