Anyone serious about a meaningful online presence needs Search Engine Marketing for his website. Many of you will ask; what is Search Engine Marketing? Search Engine Marketing or SEM is a form of Internet Marketing that seeks to promote websites by increasing their visibility in the search engine results page (SERPs). As you may note in the image below a SERP displays two types of results, organic results and paid results.
The processes to appear on organic and paid results differ. Search Engine Optimization (SEO) is what a website requires to rank organically whilst Pay Per Click is the internet advertising model used to appear on paid results. For more information about either please read their respective page.