Google is really a brilliant company. I don’t mean that in the sense that the people who work there are probably exceedingly smart, though every indication is that they are. What I mean, however, is that it’s a brilliant idea.
Build a utility that billions of people will use every day to tell you exactly what they’re interested in at that given moment, and then get companies to pay you to display an ad about that very interest right above the rest of the search results.
