Social media dynamics encompass the changing patterns of interaction, communication, participation, and information exchange that emerge among users and within digital platforms over time ^[1]. These dynamics are shaped by user behavior, social relationships, platform features, content visibility, and algorithmic systems that influence how information is created, circulated, interpreted, and discussed ^[2]. They include processes such as information diffusion, audience engagement, the formation and transformation of online communities, public opinion development, and the emergence of collective behaviors, including cooperation, polarization, and conflict ^[3]. Social media dynamics are also influenced by external events and broader social contexts, which can alter patterns of attention, participation, and discourse across platforms. In media studies and communication research, examining these processes helps explain how digital communication networks evolve, how narratives gain or lose visibility, and how online interactions may influence public discussion and social relationships. Their analysis requires attention to temporal changes, differences among platforms and user groups, and the reciprocal relationships between individual actions and wider communication patterns.