Excel Services in Sharepoint Server 2007 - in 1 slide

Every so often I come across a single slide that does a great job of explaining an important technology. This is a good example (especially if you see it with the build). Something I have always wanted (but alas never created) is a collection of such slides across all our interesting technologies. It would totally avoid my mediocre whiteboard skills in meetings I hold with my ISVs! (or check out the video I first watched a year back)