Google is the world's largest search engine, Baidu, Yahoo, Sohu and other search engine principles and Google is the same mechanism and algorithm, and Google has more or less the same. SEO is an acronym for Search Engine Optimization, translated into a search engine optimization, also known as Web site optimization or natural position. SEO as a profession, 98 years in the United States started to form in domestic officially formed in 2004. SEO sometimes refers to Search Engine Optimizer, that is, search engine optimization division. SEO's main task is to study the Google ranking of a website is optimized for Google, its in Baidu, Yahoo, Sohu and other search engines will usually standing in the front.
       After a Web site to do a good job, if no one knows if his presence, the site is useless, no matter how well do ah! Because no one to visit your site! Naturally there will be no potential customers come to you! Now more and more important business to promote the site, especially the promotion of google. Because google popularized, Baidu, Yahoo, Sohu and other search engines will rank corresponding to the meeting can be described as the double benefit! Therefore, many companies have chosen to do google site promotion.
        The result is that SEO rankings after the results. But in this case the ranking refers to a natural position. Search engine marketing is divided into two types of natural position, that is, SEO, the other is ranked bid. The so-called competitive position, for example, the "construction site" of the word, the Who's the most money, will at first. Natural position with the top bid, the two do not affect each other, but the effects of natural ranking is much higher than the bid rankings. This is also the choice of many enterprises SEO reasons.