This is out there in a big way (sadly dragged into the news along with the death of Gary Gygax). It was covered everywhere from the New York Times to Boingboing. There's really no reason to post it again.
I don't care.
I love the illustration, the coloring, the premise (a flowchart that explains why D&D influences everything geek). Extra nerd points to the creator, Sam Potts, the designer of John Hodgman's "The Areas of My Expertise."
Woot! Atari! Peter Jackson! Fan girls in costumes! Neuromancer!
Sam captured an essential truth here - everything geek ends with Google. From the flowchart:
"Google is all about D&D
Page rank = character level
Page hits = hit points
Internet = dungeon"