The document discusses how social media has changed communication from a one-way monologue to an open dialogue. It notes that while customers haven't changed, communication technologies now allow conversations to be more efficient and widespread. The document provides examples of how companies like Dell, MoDOT, and TxDOT have used social media platforms like Facebook and Twitter to engage customers, solicit feedback, and publicize their work. It recommends that companies define goals for social media use, get involved, monitor conversations, and listen to and engage with customers in order to make the most of these new communication channels.