You'll need some Advil after reading this chart.
Josh Leichtung's insight:
This is a great start. There is probably another 25% or so not on their radar just yet, or just ignored.
I'd like to see this combined with the various media types available. Afterall, it isn't just what you can do, it is what you can do and WHERE you can do it. Perhaps it is a tall order. Somebody should try! Maybe me!