Two-Step Flow Theory: The two-step flow theory suggests that ideas often flow from mass media to opinion leaders, and then from these opinion leaders to a wider audience, rather than directly from the media to the general public.
Diffusion of Innovations: The diffusion of innovations theory explains how new ideas, products, or behaviors spread through a social system, often with the help of opinion leaders who adopt and promote the innovation early on.
Social Influence: Social influence is the process by which individuals or groups affect the thoughts, feelings, and behaviors of others, which is a key mechanism through which opinion leaders exert their influence.