Computer Scientists Measure the Speed of Censorship On China’s Twitter
MIT Technology Review, March 06, 2013
http://www.technologyreview.com/view/512231/computer-scientists-measure-the-speed-of-censorship-on-chinas-twitter/
Related:
报告揭秘新浪微博“删帖”内幕(US Research Shows 30% of Postings on Sina Weibo Removed Within 5-30 Minutes)
British Broadcasting Corporation, March 7, 2013
http://www.bbc.co.uk/zhongwen/simp/china/2013/03/130307_weibo_deletion_report.shtml