Today search engines plays a major role in the success of a website because today 70 to 80% visitors coming to various sites are from the search engines only. We can easily understand all this from the big success of search engines like Google. Google has made billions of rupees from its search engine advertisement program. All this only shows the power of search engines. Therefore for the success of a website the role of search engine optimization firms is increasing. These sites help web owners in getting higher rank in the search engines and finally getting more number of visitors. These programs are so successful that even some of the successful websites use them to increase the number of visitors for their site.