Search Engine Marketing

[dropcap]S[/dropcap]earch engine marketing (SEM) is a form of Internet marketing that involves the promotion of websites by increasing their visibility in search engine results pages (SERPs) through the use of paid placement, contextual advertising, and paid inclusion. Depending on the context, SEM can be an umbrella term for various means of marketing a website including search engine optimization (SEO), which “optimizes” website content to achieve a higher ranking in search engine results pages, or it may contrast with SEO, focusing on only paid components.