Corporate media refers to mass media productions, distribution, ownership, and funding that are dominated by corporations. The document discusses how a small number of large corporations have come to own and influence most mainstream media outlets. It provides examples of major corporations that own media in both developed countries like the US and in Pakistan. These include Telenor, QMobile, and Engro Foods, which owns the Olpers milk brand that produces popular commercials in Pakistan. The document examines how consolidated media ownership can reduce the diversity of information available to the public.