The famous question of SEM and SEO is a riddled that still newbie cannot solve. The biggest difference between SEM and SEO is that with SEO a company will not pay the search engine or another website owner a fee to have their URL listed in the search results. Many experts believe that using of SEM and SEO is the best approach. However impact on user behavior, SEM and SEO is unknown. The key to winning is SEM and SEO is the ability to choose the right keywords that potential customers would use to locate the website, which have the right balance of traffic versus competition.
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