China has ordered pc vendors to ship every pc with internet filtering program “Green Dam”. This software besides blocking pornographic content, is also supposed to put censorship in blogs and websites.
In response to that, chinese activists have requested everyone to remain offline on that day.

http://www.nydailynews.com/tech_guide/2009/06/22/2009-06-22_web_protest_planned_as_chinese_government_introduces_green_dam_filtering_program.html

June 23rd, 2009