A bill to be introduced to the US Congress, which aims to prevent internet companies from facilitating censorship overseas, may not only limit US companies' ability do business in China, but may also deter Chinese companies from tapping US equity markets, analysts and industry players said... The regulations would...apply to companies that are listed on US [stock] exchanges... That could extend laws covering some of China's top internet companies, including Baidu.com, Hong Kong's Tom Online Inc and Sohu.com Inc. [also refers to Yahoo, Alibaba.com, Bokee]