Today's information and telecommunications technology makes it possible to communicate data and other information exchange and regardless of location, distance and time space. The computer revolution that has profoundly changed production and communication is destined to change marketing just as profoundly [1]. The most popular e-tool used for communication is social networking. Social networks have experienced an evolutionary process - in the beginning was like-minded grouping, news exchange by mean of e-mail. Later on developed social networks, that became a tool for e-business. Social networks can be effectively used in different e-business and e-marketing activities, such as sales, advertising, PR, human resources, customer segmentation etc.