Many people get confused by the terms search engine optimization & search engine marketing! & feel as if they were the same.While the reason for using SEO or SEM is same ie; to get targeted traffic to their website but there is significant difference between Search Engine Optimization & Search Engine Marketing.
Before writing this article I had done significant amount of research on what these terms really mean for webmasters.But I’m astonished to see varying thoughts about them.So to help newbies I wrote this post to clear any doubts you might have.
SEO (search engine optimization) : It impacts the organic listings on the search engine results page (SERP).
SEM (search engine marketing) : It impacts the sponsored listing areas on search engine results page (SERP)
From the below image you can see What I mean by SEO & SEM.The Listings on top of page & to the right hand side of the page are as a result of Search Engine Marketing & all others are a result of Search Engine Optimization.