Spending on advertising is huge. One estimate by marketing consulting firm, Zenith, places worldwide spending on advertising at over (US) $500 billion. This level of spending supports thousands of companies and millions of jobs. In fact, in many countries most media outlets, such as television, radio, websites and newspapers, would not be in business without revenue generated through the sale of advertising.
While worldwide advertising is an important contributor to economic growth, individual marketing organizations differ on the role advertising plays. For some organizations little advertising may be done, instead promotional money is spent on other promotion options such a personal selling through a sales team. For some smaller companies advertising may consist of occasional advertisement and on a very small scale, such as placing small ads in the classified section of a local newspaper.
But most organizations, large and small, that rely on marketing to create customer interest are engaged in consistent use of advertising to help meet marketing objectives. This includes regularly developing advertising campaigns, which involve a series of decisions for planning, creating, delivering and evaluating an advertising effort. We will cover advertising campaigns in greater detail in the Managing the Advertising Campaign Tutorial.