Digital marketing involves promoting brands online, especially through search engines and social media. It allows users to access information anytime from anywhere. There are several techniques in digital marketing including SEO, SEM, SMO, SMM, email marketing and campaign marketing. SEO involves optimizing a website to rank higher in search engine results through techniques like keyword research, content optimization, link building and blogging. Social media optimization refers to increasing visibility on social media platforms like Facebook, Twitter, LinkedIn and Instagram to drive traffic to a website.