Search engine marketing (SEM), while most often used as a reference to paid advertising, can also encompass SEO, social networking, business listings, and content marketing. And it does encompass all these things, and more, when SEM is provided by Mansfield Marketing. Increasing visibility in search engines is the goal. SEM is not an alternative to SEO, it is a required companion service. We consider more than what position a website holds in search results. We consider the amount of business our clients receive in relation to what they spend – A positive return on investment.