History: Much has happened to shape the definition of news as it moved from print into the electronic media. Each medium changed the ways in which news was defined and presented.

Industry: This section will explain how today’s news industry works, with special attention given to how news stories are chosen in electronic media.

Controversies: The news industry is a powerful opinion shaper. Its power can be greatly influenced by various gatekeepers, including giant global corporations and individual news professionals. Most of the controversies involving news can fit into two problems in gatekeeping: political bias and news as entertainment.