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 continue to reduce the diversity of information provided, as well as to reduce the accountability of information providers to the public. The ultimate consequence of consolidation, critics argue, is a poorly informed public, restricted to a reduced array of media options that offer only information that does not harm the media oligopoly's growing range of interests. For those critics, media deregulation is a dangerous trend, facilitating an increase in concentration of media ownership, and subsequently reducing the overall quality and diversity of information communicated through major media channels. Increased concentration of media ownership can lead to corporate censorship affecting a