At a Google press event at the San Francisco Museum of Modern Art Google founder Sergey Brin and Google vice president for search products and user experience Marissa Mayer introduced Google Instant
"which predicts Internet search queries and shows results as soon as someone begins to type, adjusting the results as each successive letter is typed."
"Google, which already handles more than a billion searches a day and has a billion users a week, had to figure out how to manage the load when suddenly each letter typed was a separate search query. The solution includes storing frequent searches and sending common ones, like 'Barack,' back more quickly than ones that are nearly impossible to predict, like 'Bill.' " (http://www.nytimes.com/2010/09/09/technology/techspecial/09google.html?hpw, accessed 09-09-210).