Social media refers to interaction among people in virtual communities and networks where they create, share and exchange information and ideas. Popular social media tools include WhatsApp, Twitter, Facebook, Google+ and Pinterest. Some positive effects of social media are that it improves communication and helps businesses advertise at low cost, while also helping youth build relationships and find jobs. However, social media also has negative effects like spreading misinformation, decreasing productivity, causing people to compare their lives to others and damaging the behavior and health of teenagers.