How did the ability to produce newspapers inexpensively change their content? (explain ""yellow journalism"" as part of your answer)

Techological improvements allowed for mass printing of newspapers and books in the 19th and 20th centuries. This has had an economic, commercial and social impact. It was possible to reach thousands or even millions of people with a single edition; it was possible now to reach a massive audience who did not have higher education, but wanted to read news and have some form of entertainment. People have always wanted to know about shocking events, disasters, tragedies, violent crimes and the juicy details of the romantic life of those famous and powerful. There is an old phrase of American journalism: "Dog bites man, that's not news. Man bites dog, that's news." So, newspapers for a massive audience were set up and exploited stories about violence, crime and sex. That's the advent of "yellow journalism" in the modern world. Besides, having a high number of readers or subscribers assured profits for newspaper owners, because the larger the audience, the larger the advertising revenues. This logic continues to be true today.