What Is SEM?
Short for “search engine marketing,” SEM is usually used to describe the immediate, money-backed portion of search engine marketing that commonly takes the shape of PPC (pay-per-click)/CPC (cost-per-click) search engine results page ads in one form or another.
In fact, when you enter the SEM track at an online marketing conference like SMX, for instance, you can expect to learn about Google AdWords, Bing Ads, advertising paid by the click or by the acquisition (CPC and CPA), and other more specific areas of paid search advertising like retargeting, geotargeting and mobile targeting.