What is the difference between SEO and SEM?

The difference between SEO and SEM is simply that Search Engine Optimization is part of Search engine marketing or Search marketing as it is widely known. Both processes aim in increasing visibility in search engines. ... It involves other methods that can get you more search engine visitors like PPC advertising.

SEO is Search Engine Optimization while SEM is Search Engine Marketing

The difference between SEO and SEM is simply that Search Engine Optimization is part of Search engine marketing or Search marketing as it is widely known. Both processes aim in increasing visibility in search engines. ... It involves other methods that can get you more search engine visitors like PPC advertising.

SEO is the process of optimizing your web site for the purpose of getting free traffic from search engines
SEM is the marketing process with a goal of getting more visibility in search engines either by getting more free traffic (SEO)

SEO - search engine optimization and SEM- search engine marketing is both are the increasing the visibility of business and increasing the traffic of business.