Media in New York City have their editorial offices based in the city. New York is home to the corporate headquarters of such publishing giants as: Among other national leaders based in New York city are "Newsweek", owned by The Newsweek Daily Beast Company", and Rolling Stone", published by Wenner Media. In the 1930s, New York-based RCA was the nation's largest manufacturer of phonographs. In the late 19th and early 20th century, most sheet music in the United States — especially the popular songs of the day, many now standards — was printed at Tin Pan Alley, so called because the constant sound of new
Concentration of media ownership a limited number of stations. In most countries, this system of licensing makes many markets local oligopolies. The similar market structure exists for television broadcasting, cable systems and newspaper industries, all of which are characterized by the existence of large-scale owners. Concentration of ownership is often found in these industries. In the United States, data on ownership and market share of media companies is not held in the public domain. Organizations like Fairness and Accuracy in Reporting have accused the Military-industrial-media complex of using their media resources to promote militarism, which, according to Fairness and Accuracy in Reporting's hypothesis, benefits