"Censorship on yahoo.cn is almost complete - 97 per cent of sites returned on subversive searches support the Chinese government. In fact, researchers found that searching for "Tibet independence" or "6-4" (4 June is the anniversary of Tiananmen Square) won't just give you shonky results but will get you barred from the site for an hour."

http://www.theregister.co.uk/2006/06/16/yahoo_china_censor/

http://www.rsf.org/article.php3?id_article=18015