SEO (Search Engine Optimization) refers to optimizing a website to earn a good ranking in the search engine, whereas SEM (Search Engine Marketing) refers to paid advertising for a quick listing in the search engine. [More]

Advertising is the largest source of online transaction. More than 90% of smartphone users in the U. [More]

Search engine marketing or SEM is defined as a form of Internet marketing that comprises of promotion of website by increasing their visibility in search engine results pages (SERPs) primarily through paid advertising. [More]