One Definition of Advertising

Advertising is bringing a product (or service) to the attention of potential and current customers. Advertising is focused on one particular product or service. Thus, an advertising plan for one product might be very different than that for another product. Advertising is typically done with signs, brochures, commercials, direct mailings or e-mail messages, personal contact, etc.

One Definition of Promotion

Promotion keeps the product in the minds of the customer and helps stimulate demand for the product. Promotion involves ongoing advertising and publicity (mention in the press). The ongoing activities of advertising, sales and public relations are often considered aspects of promotions.

One Definition of Marketing

Marketing is the wide range of activities involved in making sure that you're continuing to meet the needs of your customers and getting value in return. Marketing is usually focused on one product or service. Thus, a marketing plan for one product might be very different than that for another product. Marketing activities include "inbound marketing," such as market research to find out, for example, what groups of potential customers exist, what their needs are, which of those needs you can meet, how you should meet them, etc. Inbound marketing also includes analyzing the competition, positioning your new product or service (finding your market niche), and pricing your products and services. "Outbound marketing" includes promoting a product through continued advertising, promotions, public relations and sales.

One Definition of Public relations

Public relations includes ongoing activities to ensure the overall company has a strong public image. Public relations activities include helping the public to understand the company and its products. Often, public relations are conducted through the media, that is, newspapers, television, magazines, etc. As noted above, public relations is often considered as one of the primary activities included in promotions.