online Social networks and the need to communicate are universal human conditions. A general assumption is that communication technologies help to increase and strengthen social ties. The Internet provides many social networking opportunities. Social networking sites affect individual relationships and people use social networking sites to expand their personal networks, to find people who have had similar experiences, to discuss a common hobby. People spend time on networking sites to deepen their existing personal networks and stay connected to old friends or distant family. In business there are several advantages of using social networks, evaluate 2 of social network advertising strategies (100 words minimum)