Refers to a diverse array of

Outdoor media
Outdoor media is a form of mass media which comprises billboards, signs, placards placed inside and outside commercial buildings/objects like shops/buses, flying billboards (signs in tow of airplanes), blimps, skywriting, AR Advertising. Many commercial advertisers use this form of mass media when advertising in sports stadiums. Tobacco and alcohol manufacturers used billboards and other outdoor media extensively. However, in 1998, the Master Settlement Agreement between the US and the tobacco industries prohibited the billboard advertising of cigarettes. In a 1994 Chicago-based study, Diana Hackbarth and her colleagues revealed how tobacco- and alcohol-based billboards were concentrated in poor neighbourhoods. In other urban centers, alcohol and tobacco billboards were much more concentrated in African-American neighborhoods than in white neighborhoods.^[1]
Purposes

A panel in the Newseum in Washington, D.C., shows the September 12 headlines in America and around the world.
Mass media encompasses much more than just news, although it is sometimes misunderstood in this way. It can be used for various purposes:

• 
  Advocacy, both for business and social concerns. This can include advertising, marketing, propaganda, public relations, and political communication.
  
• 
  Entertainment, traditionally through performances of acting, music, and TV shows along with light reading; since the late 20th century also through video and computer games.
  
• 
  Public service announcements and emergency alerts (that can be used as political device to communicate propaganda to the public).^[13]
  

Professions involving mass media
Journalism
Journalism is the discipline of collecting, analyzing, verifying and presenting information regarding current events, trends, issues and people. Those who practice journalism are known as journalists.
News-oriented journalism is sometimes described as the "first rough draft of history" (attributed to Phil Graham), because journalists often record important events, producing news articles on short deadlines. While under pressure to be first with their stories, news media organizations usually edit and proofread their reports prior to publication, adhering to each organization's standards of accuracy, quality and style. Many news organizations claim proud traditions of holding government officials and institutions accountable to the public, while media critics have raised questions about holding the press itself accountable to the standards of professional journalism.