people will all achieve the purpose of marketing mode called network marketing through the network channels, some people do not know the difference between SEM and the Shanghai dragon, some people do not even know the WeChat micro-blog marketing, marketing and other marketing methods. Of course, this is not wrong, after all, gehangrugeshan. But, if you’re ready to expand your marketing path through the network channels, some of the basic concepts, functions, advantages and disadvantages of these differences, still need to understand. At present, micro-blog marketing has become the past, WeChat marketing has not formed climate, platform marketing threshold is high, also bound. The new marketing mode has not been perfect, and the search engine still has strong adhesion. Therefore, SEM and the Shanghai dragon is still the mainstream of network marketing, website construction of Guangzhou Qiyi network Xiaobian today to tell you a simple analysis of the SEM and the Shanghai dragon of the two ways, the target search engine for Baidu.