Count me late to the party for not seeing "The Secret Source of Google's Power" before. There are enough interesting facts, ideas, and speculations in the article and its follow-up comments to keep you preoccupied for quite some time. This was a fascinating read. I think we need to think about the various potentials here -- along several dimensions. Certainly, as a software architect, I would feel like a kid in a candy store at Google! Lucky those guys!