An interesting article about the Chinese bans on Wikipedia:
http://www.cnn.com/2006/TECH/internet/11/17/china.internet.ap/index.html

It seems so weird to me, since in the US you can basically find anything on the internet, despite some censorship. Freedom of speech is a huge debate in China, for fear of discussion of politically banned issues. There is apparently a lot of censorship of the internet access in China and I just found it interesting how much the Chinese government decides whose opinions can be expressed and what is inappropriate to put on the internet. Anyway, the topic is interesting, but if you don't want to read the whole thing (a whole 3 minutes of reading); here is the part I found most interesting: