PBS Global

Advertising is a promotion of a product or service. It is extremely pervasive in modern society. Spaces for advertising are common, but not restricted to and include public transport, billboards, schools, movies (product placement), clothing, even bathroom stalls. The most common media to encompass advertisements are:
Newspapers - one of the traditional mediums used to advertise businesses.
Magazines - a more focused, although more expensive.
Yellow Pages - there are several forms of that you can use to advertise your business.
Radio and television are the most powerful means of advertising as they refer to your visual and audio senses.
Direct Mail, in other words - direct marketing, is a marketing technique in which the seller sends marketing messages directly to the buyer.
Telemarketing - an effective system for introducing a company to a prospective customer and organizing appointments.
Specialty Advertising - this type of advertising suggest the use different tiny products called advertising specialties, such as computer mouse, key chains, mugs, etc.

The United States boasts the largest advertising market, accounting for half of the world's advertising expenditures. Most companies employ such advertising techniques as celebrity featuring. Musicians, actors, and sportsmen make big money promoting everything from cereal to expensive clothes and lifestyle choices.