Once the event is over, but before the dust has settled, there are still plenty of opportunities for social media interaction and engagement
Before you do anything else, Friend/ Like, Follow, and Connect with all the new contacts you made at the event
Upload more photos to Facebook and more video clips to YouTube. Ask for feedback about the event from your social audience and give them your. Publish a review of the event on your website or blog
Keep cross-promoting everything through all your social channels
And while the enthusiasm is still bubbling, start creating the buzz about your next event