Pay-per-click (PPC) service in social media marketing is a digital advertising model where advertisers pay a fee each time their ad is clicked. Platforms like Facebook, Instagram, and LinkedIn offer PPC options, allowing businesses to target specific audiences based on demographics, interests, and behaviors. This method is cost-effective as advertisers only pay when users engage with their ads. PPC campaigns can be highly customizable, with options for setting budgets, ad schedules, and goals. By leveraging PPC on social media, businesses can increase visibility, drive traffic to their websites, and achieve measurable marketing outcomes.