Although not the end all be all from a training resource perspective, the MPN learning plans are a nice distillation of what is out there. I often find that they save me time from canvassing the MPN site looking for training resources. Below you will find an updated list with links to all the current learning plans. My hope is that this will save you a little more time! ☺
Please notice the Windows 8 and Windows Server 2012 learning plans as I am asked about readiness content for both impending releases daily. In total there are 20 sessions on the two products!