Digital marketing utilizes digital channels like social media, search engine optimization, email and mobile marketing to promote products and services. It allows businesses to reach target audiences, build relationships and boost sales. Digital marketing uses tools like analytics, social media, content marketing, search engine optimization, search engine marketing, email marketing, mobile marketing and more to create an effective online presence. It is important for digital marketers to understand different digital marketing techniques, develop strategic digital marketing plans, and measure the effectiveness of campaigns using key performance indicators.