What Is the Difference between Search Engine Optimization (SEO) and Search Engine Marketing (SEM)?

What is the difference between Search Engine Optimization (SEO) and Search Engine Marketing (SEM)? The easy way to explain the difference between Search Engine Optimization (SEO) and Search Engine Marketing (SEM) is to relate it to two of the main drivers of traditional marketing, public relations (PR) and advertising campaigns. SEO is similar to an […]