Digital Marketing Strategies and Consumer Engagement: A Systematic Review of Emerging Trends, Technologies, and Measurement Frameworks

The fast growth of digital technologies has changed the environment of marketing radically, as the use of the conventional methods does not seem adequate to address and attract the modern consumer. In the given paper, an extensive systematic review of digital marketing, including social media marketing, search engine optimization (SEO), content marketing, influencer marketing, programmatic advertising, and data-driven personalization, is provided. Based on 87 peer-reviewed articles that were released within the 2018-2024 timeframe, this review brings together empirical evidence on the usefulness of every strategy in motivating consumer engagement, brand awareness, lead generation, and conversion rates. The results indicate that multichannel strategies always work better than one channel campaigns and personalization and artificial intelligence (AI)-driven products become essential instruments of marketing ROI. Also, the research reveals serious gaps in measurement systems, especially when it comes to long-term brand equity measures in the digital context. An updated Digital Marketing Effectiveness Framework (DMEF) is suggested to inform practitioners and a next-generation of study. Discussions on implications to marketing managers, policy makers as well as academics are observed with recommendations of ethical use of data and emerging measures of regulation.