We get a lot of positive feedback about the Hyper-V Component Architecture Posters that we have been producing (you can grab the latest one from here).  Recently the team that produces these posters also made some in-depth companion articles that step through some of the finer details of Hyper-V Replica and Hyper-V Clustering.

You can check out these companion guides here:

http://www.microsoft.com/en-us/download/details.aspx?id=29189

Cheers,
Ben