One of the most prominent figures in the Chinese internet sector, he was the founding director of Microsoft Research Asia, serving from 1998 to 2000; and president of Google China, serving from July 2005 through September 4, 2009. He created a website, Wǒxuéwǎng (Chinese: 我学网; lit. 'I learn Internet') dedicated to helping young Chinese people achieve in their studies and careers, and his "10 Letters to Chinese College Students" have spread widely on the web.