Digital marketing involves all online marketing activities across digital channels like websites, social media, and mobile apps. It can be used by both small and large businesses with just a domain name or social media account. The 4E framework involves exciting, educating, allowing experiences with, and engaging customers. Popular digital marketing opportunities include YouTube, Twitter, Instagram, Facebook, and LinkedIn. The three step engagement process is to listen to customers online, analyze what they say, and use that information to engage them further.