Search Engine Marketing (SEM) involves all marketing strategies that are used to get good results on search engines. So if you think why it is essential for your website to be visible on search engines, consider this - There are over 700,000 searches done every second only on Google. In other words, you are possibly missing out on hundreds if not thousands of people every second, who could visit your website and are potential leads and customers.http://www.brandevous.ae/search_engine_marketing.php