When deciding upon a newspaper in which to advertise, there are three physical criteria to consider: distribution, size, and audience. Newspapers are either daily or weekly, come in a standard or tabloid size, and reach a large percentage of the reading public. Because of the broad demographic reach of most newspapers it is difficult to target a specific audience; however, newspapers are effective in increasing awareness of a business' products and services in a specific geographical area.
Types of ads placed in newspapers include: display ads, classified ads, public notes, and preprinted inserts. Newspaper ads have some flexibility in their size. For instance, some are small boxes that take up only a small portion of a page, while others might span one or two full pages (the latter, however, are typically only bought by larger corporations). Regardless of this flexibility, newspaper ads can only use limited special effects, such as font size and color. These limitations lead to advertising "clutter" in newspapers because all the ads look very similar. Therefore, advertisers must use original copy and headings to differentiate their ads from those of their competitors. The quick turnover of newspapers also allows the advertiser to adjust ads to meet new market conditions; however, this turnover means that the same ad may need to be inserted over a significant period of time in order to reach its target audience.