How Google Grows...and Grows...and Grows

To most reasonable people, the fleeting house ad seemed inconsequential. But imagine that you're unreasonable. For a moment, try to think like a Google engineer -- which pretty much requires being both insanely passionate about delivering the best search results and obsessive about how you do that. This is what it's like inside Google. It is a joint founded by geeks and run by geeks. It is a collection of 650 really smart people who are almost frighteningly single-minded. "These are people who think they are creating something that's the best in the world," says Peter Norvig, a Google engineering director. "And that product is changing people's lives."

If you're a Google engineer, you know that those nine words comprised about 120 bytes of data, enough to slow download time for users with modems by 20 to 50 milliseconds. You can estimate the stress that 120 bytes, times millions of searches per minute, put on Google's 10,000 servers. On the other hand, you can also measure precisely how many visitors took the tour, how many of those downloaded the Google Toolbar, and how many clicked through for the first time to Google News.

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