Yahoo signalled its intent to challenge Google last year when it bought Inktomi, a company that enjoyed an early technology lead but fell on hard times after the dotcom crash.

• 雅虎去年在收购了Inktomi, 它创建初期还能坐享技术上的领先优势，但在网络产业大滑坡后经营困难而衰落, 率先表明了挑战Google的意图。