Social networks have emerged as powerful platforms for communication, Universities are now educating the Z generation and in around five years they will start teaching the Alpha generation, the youngest and more digital generation ever and probably the most influenced by social networks. This article explores the potential of social media networks in promoting and teaching sustainability in Higher Education Institutions. It delves into various strategies, content formats, and engagement techniques that can effectively convey complex environmental and social concepts, inspire action, and foster a global community dedicated to a more sustainable future. Drawing upon real-world examples and academic research, this article provides a comprehensive guide for individuals, organizations, and educators seeking to harness the reach and interactivity of social networks for sustainability education and advocacy.