It used to be you spent five minutes registering for an event, and then showed up on the big day, went to a few workshops, drank two free Coronas, and went home. Social media changes all of that, enabling events and their planners to have long-term, nuanced, shifting interactions with attendees. I gave a speech last week in suburban Cincinnati to the Mid-American chapter of Meeting Planners International , titled 7 Ways to Use Social Media to Create Buzz-Worthy Events.