Turnoi, if Google withdraws from China, it'll have an impact on the educational sector in the country. I believe there're many foreign teachers that take advantage of Google on mainland. Local students greatly profit out of Google and it only helps teachers increase their classroom effectiveness. I highly doubt that Baidu can either replace or match Google as it not only lacks in depth but also in a professional approach to the modern world. I mean, how much info can you possibly find on Baidu for some extensive research for your Science, Social Science or any other academic projects? And, if you look for any Political Science projects, you'll probably find the pic of Chairman Mao at most. :)