Many people wonders why Google.com keeps on top of search but there is thre main factors:
People behavior with external Factors (Weather…)
Keep on Measuring
Humans
I am a follower of Mr. Varian and Shapiro activities since I read his book The Economics of Information Technology.
The best quote ever for MR. Varian came out today as:
“Bad weather is good for Google, as long as it is not too bad,” Mr. Varian said.
“I wouldn’t quite go so far as to say we are recession-proof,” said Hal R. Varian, Google’s chief economist. “But we are recession-resistant.”
So Mr. Varian and Diane Tang, principal engineer in the ads quality group, helped devise what they call a basket of keywords. Much like the consumer price index, a basket of goods and services that economists use to track inflation, the measure is made up of a broad sample of keywords and is weighted to make it statistically accurate. This internal benchmark helps Google get a clearer picture of its performance.
Over time, the company also looked beyond click-through rates to rank ads. Google now takes into account the “landing page” that the ad links to, and, for example, gives low grades to pages whose sole purpose is to show more ads. Soon, the loading speed of a landing page will also be considered, Mr. Fox said.
