[AP] When Shanghai blogger Isaac Mao tried to watch a YouTube clip of Chinese police beating Tibetans, all he got was an error message.Mao thought the error — just after the one-year anniversary of a crackdown on Tibetan protesters in China — was too suspicious to be coincidental, so he reported it on a new Harvard-based website that tracks online censorship.
http://www.usatoday.com/tech/webguide/2009-08-04-online-censorship_N.htm