Advertising

Most newspapers make a majority of their income from advertising; the income from the customer’s payment at the news-stand is small in comparison. The portion of the newspaper that is not advertising is called editorial content, editorial matter, or simply editorial, although the last term is also used to refer specifically to those articles in which the newspaper and its guest writers express their opinions.
Newspapers have been hurt by the decline of many traditional advertisers. Department stores and supermarkets could be relied upon in the past to buy pages of newspaper advertisements, but due to industry consolidation are much less likely to do so now.[19]
In recent years, the advertorial emerged. Advertorials are most commonly recognized as an opposite-editorial which third-parties pay a fee to have included in the paper. Advertorials commonly advertise new products or techniques, such as a new design for golf equipment, a new form of laser surgery, or weight-loss drugs. The tone is usually closer to that of a press release than of an objective news story.

Source : www.wikipedia.org