Search engine marketing (SEM) it's a digital marketing strategy used to increase the transparency of a website in search engine results pages. SEM is the process of taking on merchandise or customers via search engines such as Google, Bing, Yahoo, and others. Search marketing generally involves two fields of study: SEO (search engine optimization) and SEM (search engine marketing) but its originally called search engine marketing. SEM is one of the most effective pathways to grow up your business in an increasingly challenging marketplace. SEM is used complicated optimization to ensure the most relevant results are returned for each search, including location and other available information.