Muckraker in the context of Political machine

Robber baron is a term first applied by 19th century muckrakers and others as social criticism to certain wealthy, powerful, and unethical 19th-century American businessmen. The term appeared in that use as early as the August 1870 issue of The Atlantic Monthly magazine. By the late 19th century, the term was typically applied to businessmen who used exploitative practices to amass their wealth. Those practices included unfettered consumption and destruction of natural resources, influencing high levels of government, wage slavery, squashing competition by acquiring their competitors, and to create monopolies and/or trusts that control the market. The term combines the sense of criminal ("robber") and illegitimate aristocracy (“baron”) in a republic.

Jacob August Riis (/riːs/ REESS; May 3, 1849 – May 26, 1914) was a Danish-American social reformer, "muck-raking" journalist, and social documentary photographer. He contributed significantly to the cause of urban reform in the United States of America at the turn of the twentieth century. He is known for using his photographic and journalistic talents to help the impoverished in New York City; those impoverished New Yorkers were the subject of most of his prolific writings and photography.

Riis endorsed the implementation of "model tenements" in New York with the help of humanitarian Lawrence Veiller. He was an early proponent of the newly practicable casual photography and one of the first to adopt photographic flash. While living in New York, Riis experienced poverty and became a police reporter writing about the quality of life in the slums. He attempted to alleviate the poor living conditions of poor people by exposing these conditions to the middle and upper classes.

Collier's was an American general interest magazine founded in 1888 by Peter Fenelon Collier. It was launched as Collier's Once a Week, then renamed in 1895 as Collier's Weekly: An Illustrated Journal, shortened in 1905 to Collier's: The National Weekly and eventually to simply Collier's. The magazine ceased publication with the issue dated the week ending January 4, 1957, although a brief, failed attempt was made to revive the Collier's name with a new magazine in 2012.

As a result of Peter Collier's pioneering investigative journalism, Collier's established a reputation as a proponent of social reform. After lawsuits by several companies against Collier's ended in failure, other magazines joined in what Theodore Roosevelt described as "muckraking journalism." Founded by Nathan S. Collier, a descendant of Peter Collier, the Collier Prize for State Government Accountability was created in 2019. The annual US$25,000 prize is one of the largest American journalism prizes, and it was established to honor Peter Collier's legacy and contributions in the field of investigative reporting.

Lewis Wickes Hine (September 26, 1874 – November 3, 1940) was an American sociologist and muckraker photographer. His photographs taken during times such as the Progressive Era and the Great Depression captured young children working in harsh conditions, playing a role in bringing about the passage of the first child labor laws in the United States.

Advocacy journalism is a genre of journalism that adopts a non-objective viewpoint, usually for some social or political purpose.

Some advocacy journalists reject the idea that the traditional ideal of objectivity is possible or practical, in part due to the perceived influence of corporate sponsors in advertising. Proponents of advocacy journalism feel that the public interest is better served by a diversity of media outlets with varying points of view, or that advocacy journalism serves a similar role to that of muckraking.