Internet users are believed to use search engine to surf for interesting topics and the most commonly used search engines are, yahoo, google, msn, baidu and ects. According to fact, users will only surf the first few page of the searching results. No one will aware of a newly built website no matter how dedicated its design is and how resourceful is the content without indexed or ranked well on major search engine.
Hence, ranked well in major search engine has become very important for any websites. Search engine optimization is the key to achieve success in website promotion. The first generation of search engine requires website administrator to summit website address to related directory of various search engine accordingly. The second generation of the search engine will use their personal web spider robots will index and rank the website by following the link of the webpage. This includes pictures and content, position and importance of the text and other internal linking according to the most suitable category.
There are thousand of search engine optimization formulas. However, not every method is effective. After long time observation and experiment, different kind of optimizations will result in vast difference.