SEO vs SEM – What’s The Difference?
Many people confuse these two terms and use them interchangeably but there is a difference between SEO and SEM.
Search engine optimization (SEO) is a component of search engine marketing (SEM). It is the act of optimizing a website for organic or natural search engine listings. Search engine optimization is one of the most cost-effective functions of a search engine marketing campaign, but it is only one element of SEM.
Search engine marketing (SEM) is the act of marketing a website via search engines, whether by improving rank in organic or natural listings, paid or sponsored listings or a combination of both.