You can't really hold Google responsible for these blind spots. Each of them is just a reflection of the way the Web has been organized by the millions who have contributed to its structure. But the existence of Googleholes suggests an important caveat to the Google-as-oracle rhetoric: Google may be the closest thing going to a vision of the "group mind," but that mind is shaped by the interests and habits of the people who create hypertext links. A group mind decides that Apple Computer is more relevant than the apples that you eat, but that group doesn't speak for everybody.
We're wrong to think of Google as a pure reference source. It's closer to a collectively authored op-ed page—filled with bias, polemics, and a skewed sense of proportion—than an encyclopedia. It's still the connected world's most dazzling place to visit, a perfect condensation of the Web's wider anarchy. Just don't call it an oracle.