Advertising is regarded as one of the tools of public relations, called the ad to get publicity is not a commercial advertising, but advertising agencies by intended to publicize the true.
Advertising will be considered Is one kind of publicity. The so-called ad Call for information Advertising is not for commercial purposes but as an advertising agency. The aim is to promote it.
advertising will be considered. As a tool of the end of public relations, called advertising to call public relations. Not for commercial advertising, but advertising agencies. The aim for public relations.