Found this nice key to Marine aircraft

[scottcolbath]

Original size here:

http://www.yarnellpics.com/Airplanes/Miscelaneous-Aviation-Shots/i-8CSjbcW/0/O/1269963390655713711.png

S.C.

[Joe Copalman]

That's awesome!  I saw the Naval Aviation one a few weeks back, this is cool too.  A few major errors on there though (Shooters don't fly the F-35, too many a/c for the Snipers, etc), but still a good effort.

[wingsnstuff]

I think the Naval Institute publishes something similar to this in their annual report on Naval Air Forces (includes the Marine Corps).  Being a visual person, it's nice to see it represented graphically.