Study on Development of Search Engine Industry and Strategy of Search Engine Optimization

Today search engine is becoming the first channel to guide users to access website information according rapid expansion of information on the Internet.Search engine industry is increasingly at the heart of the Internet industry.Search engine optimization can make the search engine include as many pages as possible and get top-ranking in search engine natural search results.Ultimately enterprises achieve the purpose of website promotion.This paper describes the development of search engine industry,and puts forward the strategy of search engine optimization based on navigation,information and transaction users' experiences.