Media convergence refers to the flow of content across multiple media platforms and the cooperation between different media industries. Henry Jenkins argues there are four types of convergence: technological, social, cultural, and economic. Technological convergence involves old technologies evolving into new ones. Social convergence means everyone can participate in media through platforms like citizen journalism and blogging. Economic convergence allows for less costly production and greater outreach through digital promotion. Cultural convergence leads to a blending of cultures as media from different places is appreciated worldwide. The traditional boundaries between media are breaking down through this process of convergence driven by technological change.