This document discusses backchannel communication at events using Twitter. It explains that a backchannel allows simultaneous communication about an event through tools like phones and iPads. Attendees can use a designated hashtag to share feedback and interact with each other in real time. The document suggests ways to incorporate a backchannel at events, such as asking questions to start conversations during presentations. It also covers connecting with others on LinkedIn, including tips for open versus closed networking profiles.