It's not really a surprise that certain things won't appears in search results on the Internet in China. However, it is surprising that it was the United States that blocked Guo Quan's name from Yahoo! and Google in China.
However, Google and Yahoo! aren't just doing this for no reason. Google stated that they were in compliance with Chinese law. And since Google or Yahoo! don't have a legal identity in China, Quan went to sue the "parent company" in the United States. Makes sense.
Either way, Quan is going against the Chinese government and does not seem to stand a chance in the near future, and I'm not sure what happened since this article.
Quan states one thing as his mission: “Through this I hope that the world will become more concerned to resolve human rights issues in China. The freedom of the internet should be realised all over the world.”
While the freedom of the Internet worldwide may never happen, human rights issues in China is a good place for Quan to start.