SEO is an abbreviation for "search engine optimization." Means to use some techniques to make your website in the top places in Search Engine when somebody is using Search Engine to find something. Related search knowledge there are Search Engine Positioning 、Search Engine Ranking.

Many SEOs provide useful services for website owners, from writing copy to giving advice on site architecture and helping to find relevant directories to which a site can be submitted. However, a few unethical SEOs have given the industry a black eye through their overly aggressive marketing efforts and their attempts to unfairly manipulate search engine results.

SEO’s main work is through understanding some techniques, such as how does each search engine do to grab Internet pages、index、particular keyword and important factors which are related to search results and rankings, to optimize web pages, improve its search engine rankings, so as to increase traffic of these websites, ultimately to promote the websites’ sales and publicity ability.

Besides E-mail, search is the most popular network behavior. Today through search engine to search information is netizens’ main principal to look for online information and resources. Search engine marking becomes the most important part of network making. How to be indexed and get higher rankings in Major Search Engines becomes the website builders’ hottest topic.   

Presently, Google is the largest search engine providers in the world. There’s a particular page to introduce SEO on Google’s official website, and it shows Google’s attitude towards SEO .