defferance between seo and sem?

[AmandaCherry]

Search Engine Optimization (SEO) has traditionally been thought of as a component of the umbrella term, Search Engine Marketing (SEM), encompassing both paid AND organic tactics. Today, SEM is used to refer exclusively to paid search. According to Search Engine Land, Search Engine Marketing is “the process of gaining website traffic by purchasing ads on search engines,” while Search Engine Optimization is defined as “the process of getting traffic from the free, organic, editorial or natural search results on search engines.”

So, rather than viewing SEM as an umbrella term encompassing SEO, it’s more accurate to view SEM (paid search) and SEO (organic search) as separate entities to use as part of your Search Marketing arsenal.

Search Engine Marketing (SEM)
SEM strictly involves earning search visibility through paid advertisements on search engines like Google. While these advertisements are commonly referred to as pay-per-click (PPC) ads, there’s a slew of additional terms used for paid search or SEM activities—cost-per-click (CPC) ads, paid search ads and paid search advertising.

PPC advertising allows you to target potential buyers through relevant ad copy and keywords that match their search queries. These ads show up in the search engine results pages (SERPs) next to organic listings, which gives your company the opportunity to increase the visibility of its web pages, landing pages, blog articles and more.