According to Symplur, today was a big day on Twitter for the #shsmd13 hashtag. There were more than 2,250 Tweets accounting for a potential 2.8 million impressions (Twitter impressions are always suspect). In all, there have been 320 individuals Tweeting at or about this event with an average of 48 Tweets per hour. It is great to see so many people Tweeting. I believe the 320 individual Tweeting represents about one fourth of the attendees at the conference.