1. The document discusses various types of social media tools that are being used within companies, including blogs, podcasts, social networks, and content sharing sites. 2. It provides examples of how Ernst & Young is using Facebook to engage with students and potential recruits by sharing career information, videos, and photos on their Facebook page. 3. The document suggests that elements of social networks can be incorporated into existing websites, intranets, and directories to encourage employees to engage with each other.