Artnet's Ben Davis recently posted the above chart but forgot to add filetypes so I plugged a few in (in red). I was being snotty (I don't think Davis actually knows what an animated GIF is or why an artist would use one), but this annotated chart actually kind of works. Read Davis's piece if you want to see what the art world thinks of media artists, social and new. (hat tip bill)
Update: See also: visual explanations
Update 2: Got a little carried away on the ad hominem tip--this post has been dialed back to semi-polite status.