摘要:Advertising is an indispensable tool in modern society organizations. Costs of its use can vary from company to company, but one thing is certain - is an effort to any business at any level. For cost efficiency, this activities must have the maximum effect of a promotional effort should peak at a minimum cost. Popularity of socialization sites is on upward curve which is a big reason for advertising because it can be accessed with minimal cost and can thus meet the criterion of efficiency of a promotional campaign