Udemy is an online learning platform that offers a wide variety of courses, including digital marketing. These courses can teach you the skills and strategies needed to successfully promote a business or product online. They cover topics such as search engine optimization (SEO), pay-per-click advertising (PPC), social media marketing, email marketing, and more. Many of the courses on Udemy are taught by industry professionals and include quizzes, assignments, and practical exercises to help you apply what you've learned. Some popular digital marketing course on udemy are "Digital Marketing Masterclass - 23 Courses in 1" ,"The Complete Digital Marketing Course - 12 Courses in 1" ,"Digital Marketing Mastery: SEO, Social Media, Email".