Marketing at the Intersection of Innovation, Ecology & Engagement. Muhammad Farhan Azmir, Ruzimi Mohamed School of Computing, Universiti Teknologi Malaysia Abstract This review explores the dynamic convergence of marketing innovation, ecological sustainability, and consumer engagement, emphasizing their growing interdependence in contemporary marketing practices. It systematically examines advances in AI, machine learning, and immersive technologies, alongside green marketing frameworks integrating circular economy principles and sustainable consumer behaviors. Methodologically, the paper synthesizes findings from bibliometric analyses, case studies, and conceptual modeling to map current research trajectories and practical applications. Key trends include the ethical deployment of AI-powered personalization and virtual influencers, the role of augmented reality in promoting sustainable consumption, and the strategic use of social media to enhance engagement and loyalty. Challenges such as greenwashing risks and balancing privacy with marketing efficiency are also discussed. The review concludes by highlighting critical gaps and proposing integrative frameworks for future research that align technological innovations with ecological responsibility and meaningful consumer interactions, offering guidance for practitioners and policymakers striving for sustainable marketing excellence. Keywords: Marketing Innovation, Ecological Marketing, Consumer Engagement, Artificial Intelligence, Sustainable Consumption, Green Marketing, Digital Marketing, Circular Economy Introduction Context and Importance of the Intersection Marketing continues to undergo profound transformation driven by rapid advances in technology, intensifying ecological concerns, and shifting consumer behaviors. This intersection creates a complex landscape where innovation, sustainability, and engagement intertwine to redefine marketing’s role and impact. As Yuqing Geng et al. (2024) illustrate through a comprehensive bibliometric analysis, marketing research has increasingly embraced multidisciplinary approaches that span technological, business, and environmental domains. This evolving scholarly focus reflects the marketing