The aim of this paper is to show the importance of social networks as an advertising media. Guerrilla marketing is an advertising strategy, an unconventional way that companies can efficiently and with minimum cost represent a new product or service. Guerrilla marketing is causing big interest from potential customers because it is something new and unusual. Small and medium-sized businesses that have limited financial resources tend to practice guerrilla marketing. The main goal of guerrilla marketing is, first of all, to shock and surprise the potential buyer, but also to arouse emotions within the target market. Today, social media and social networks and their impact on business are mentioned daily. By developing social networks, marketing has experienced significant changes as well as the relationship of communication with consumers. More and more companies in today's business world use social networks for their marketing communication with potentional consumers. Social networks offer numerous benefits, so it is crucial to recognize their impact on your business. The new technology has changed expectacions and behaviors of consumers and influneced shopping habits, but also enabled companies new techniques, tools, and methods for more effective communication with target market that can now easily target and quickly communicate messages. The advantage of guerrilla marketing on social networks is that companies can gain real-time feedback about their products or services and can target specific target market in a very short time.