Why Google Needs to Buy Wikipedia

Because Google Maps is not very good. At the real world. And while Google is trying to fix that by allowing map editing, I don't sense Google will be very good at fostering and nurturing the kind of communities that will allow Maps to self correct.

Put another way, because Google is not very good at communities that self-correct into reasonable quality, and if it's going to realize the vision… » Full Story on John Battelle's Searchblog