Digital marketing provides several key benefits in 2021. It allows for wide accessibility as people increasingly use mobile devices. It is also flexible, as ads and content can be customized in various shapes and sizes. Digital marketing has wide reach, as more customers shop online during the pandemic. It also enables interactivity through comments and social media engagement. Influencer marketing is effective, as many follow influencers' recommendations. Content marketing is important for search engine optimization and driving traffic. Finally, digital marketing has lower costs than traditional marketing methods.