Due to the power of the Chinese economy, it's one of only a few markets Google hasn't made a credible impact on. Baidu's dominance in the Chinese Market is something to be feared, especially with the politically fuelled reactive de-listings that can occur. Due to Google's international appeal, many western people (including SEO professionals) believe that similar practices will lead to success in China. Most eventually realise that this is not the case and will commit a deadly sin of Baidu, and will be cast down into the depths of Chinese SEO hell!