Search Engine Optimization, or SEO, is the process of getting traffic to a website from search engines like Google and Bing. Simply put, it's the job of making a website show up at the top of the search engine results. In today's "Google it" world, SEO has become an absolute essential for a company's visibility. It differs from Search Engine Marketing (SEM) in that SEO focuses on free, organic traffic rather than paid advertising on these search engines.
Here are a few real-word examples of jobs and people working in this industry right now.