Google, Microsoft, Yahoo, and other large internet companies have been criticized for “cooperating with Chinese government censorship and demands for information on dissidents.” It appears that these companies are changing their attitude:
Google, Microsoft and Yahoo and a group of human rights and public interest organizations plan to introduce Wednesday a global code of conduct that they say will better protect online free speech and privacy against government intrusion.
Big Tech Companies Back Global Plan to Shield Online Speech (NYTimes)
Online Giants Unveil New Code of Conduct for Net Censorship (Ars Technica)