中文维基百科
By 5 April 2008, the Chinese Wikipedia became difficult to access from the Sun Yat-Sen University in Guangzhou. Connections to the Chinese Wikipedia were completely blocked as of 6 April 2008. Any attempt to access the Chinese Wikipedia resulted in a 60-second ban on all Wikimedia websites. However, users were able to log on to the Chinese Wikipedia using https. All other languages were accessible, but politically sensitive searches such as Tibet were still blocked.