Search engine ranking is one of the most important network marketing methods, because through search engines give a high quality potential customers, Google is the world's largest search engine. So the value of Google ranks is very high. Since 2003, the most popular website promotion method is Google advertising. We tell you here, Google's left ranking is more than 50 times the Google ads: because in the web, the click rate of advertising is generally 2 % Or less, the same truth, when you search for the information you need in Google, it must be to click the result of the left side, rarely go to click the advertisement information on the right. In general, the top ten hits in the top ten of Google search results are more than 50 times the right advertising information. The effect of promoting the left side of Google is more than 50 times the right advertisement.