The updated version of Windows 2012’s Hyper-V Architecture component poster is now available for download which is pretty neat!
As an added bonus, there are companion references for Hyper-V Replica, Hyper-V Storage, VM Mobility and Networking.
The Windows Server 2008 R2 SP1 Hyper-V poster is available here if you want to round out your collection 
Cheers,
Rhoderick
