A search for "Tibet independence" on Google.com pulls up 1.5 million entries, compared with 640,000 on the new Chinese site Google.cn or just 2,500 among Chinese-language websites. A request for "Tiananmen" on Google.com pulls up 25.9 million hits, whereas a Google.cn search for "six-four," the Chinese term for June 4, 1989, the date of the Tiananmen Square massacre, pulls up 37,000 entries.
It has stopped short of offering e-mail or blog services on Chinese-hosted servers, two areas in which a company's cooperation with the state would be most likely to land Chinese users in jail. And Google discloses that it filters out sites. A notice at the bottom of the Google.cn search page says: "In accordance with local laws, rules and policies, some search results have not been displayed."
Although Yahoo and Microsoft's MSN also filter terms, they collaborate more directly. Shi Tao, a journalist with Contemporary Trade News, received a 10-year prison sentence last year for sending e-mail that Yahoo helped track. In December, MSN shut down a blog by Zhou Jing, known as Michael Anti, at the bidding of censors. Both companies said they were only following local laws.