SEM is a very effective way for small businesses to reach their target audience, generate new customers, increase revenues, and trim acquisition costs.
SEM is an umbrella term that refers to the process of increasing website visibility on search engine results pages through paid search advertising.
The most commonly known and used paid search tool is Google Ads.
But Bing or Yahoo may also be worth your time and money
PPC stands for pay-per-click, a model of digital advertising where the advertiser pays a fee each time one of their ads is clicked. Essentially, you’re paying for targeted visits to your website (or landing page or app).
PPC - PAY PER CLICK
SEM - SEARCH ENGINE MARKETING