Search Engine Marketing (SEM) is a digital advertising strategy that enables businesses to promote their products or services on search engines like Google, YouTube, and a broad network of affiliated websites. Through SEM, advertisers can precisely target their ideal audience based on keywords, user demographics, geographic location, and interests, ensuring their promotions appear to relevant users. This approach typically follows a pay-per-click (PPC) model, where advertisers are charged only when someone clicks on their ad. SEM is an effective method for boosting website traffic, enhancing brand recognition, and driving potential leads or conversions.