The document discusses how Twitter can be used in business and provides examples. It notes that Twitter has over 190 million users who generate over 65 million tweets per day. While some see these statistics as irrelevant, the document argues that businesses should use Twitter to engage their audience. It provides examples of how companies like Cisco, Dell, and Zappos have used Twitter successfully to increase engagement, sales, and customer service. The document also outlines various tools and features of Twitter that can help businesses collaborate and promote their content.