Thanks to all who attended the ReBuild and TechEd revisited event today. I promised that I would post the links from the final slide to this blog so you can all start evaluating Server 2012 R2 and System Center 2012 R2.
Download and evaluate the Preview software
Refer to additional Windows Server 2012 R2 resources
Windows Server 2012 R2 on TechNet
Refer to additional System Center 2012 R2 resources
System Center marketplace
Server and Cloud Blog