Curious about Google’s back end? Check out this great article from Wired, which describes how Google’s search algorithm has developed over the years – and how cool it really is. Take how Google is learning language:

This is the hard-won realization from inside the Google search engine, culled from the data generated by billions of searches: a rock is a rock. It’s also a stone, and it could be a boulder. Spell it “rokc” and it’s still a rock. But put “little” in front of it and it’s the capital of Arkansas. Which is not an ark. Unless Noah is around. “The holy grail of search is to understand what the user wants,” Singhal says. “Then you are not matching words; you are actually trying to match meaning.”

Not as easy as it might seem.