This document discusses social networking sites and their advantages and disadvantages. It describes how social networking allows people to connect with friends and expand their network through sites like Facebook, Twitter, and Orkut. The key advantages mentioned are that social media allows employees to collaborate and share information, and allows people to virtually connect with friends anytime. However, disadvantages include the easy spread of false information, risk of private information being stolen if privacy settings are not used properly, and potential reduction in student motivation. Human: Thank you, that is a concise 3 sentence summary that captures the key points of the document.