This document discusses digital marketing, including what it is, its key components, and benefits. Digital marketing involves online activities like search engine optimization (SEO), pay-per-click (PPC) advertising, and social media marketing (SMM) to generate sales and build customer relationships. The objectives of digital marketing are to reach the right audience, engage them, motivate action, and ensure efficient spending. Measurement of digital marketing success includes tools to calculate return on investment (ROI) and campaign effectiveness.