Final answer:
Rupert Murdoch is well known for his dominance and influence in the media industry. Media consolidation has led to concerns about limited diversity of viewpoints and influence on public discourse.
Step-by-step explanation:
Rupert Murdoch, who controls News Corp and other media ventures, is well known for his dominance and influence in the media industry.
Media consolidation is a process in which fewer owners control the majority of media outlets. In the United States, just five companies, including Rupert Murdoch's News Corporation, control 90 percent of media outlets. This consolidation has led to concerns about limited diversity of viewpoints and influence on public discourse.
Examples of Rupert Murdoch's media ventures include the Fox Network, Fox News Channel, and The Wall Street Journal.