You’ve probably heard the terms “search engine optimization” and “SEO” thrown around a million times, but what about search engine marketing (SEM)? Let’s go over the difference between the two, whether your business needs to use both, and the advantages of search engine marketing.  What’s Search Engine Marketing? SEM marketing is the practice of gaining traffic and visibility from search engine results pages (or SERPs) using both paid and unpaid efforts. It’s when advertisers bid…