As a brand-new communication mode,search engines are exerting growing influences on the global politics,economies and cultures. The USA has gained its dominant role worldwide in the development of search engines by its technological innovation and Google consequently has the largest market share. In the mainland of China,though Baidu has larger market share than Google,the former’s further development is being hindered due to its failure to provide search services in multi-languages. The imbalanced development of search engines has aroused some countries’ attention for behind the imbalance there lurk various problems,such as the control of communication channels,the formation of absolute market monopoly,the guidance on online advertising and the control of international discourse power.
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