Been to a professional conference lately? If so, you may have noticed attendees busily typing away on their laptop or smartphone. But just what are they doing? A new trend has developed: attendees "tweeting" about conference sessions and presenters. Using Twitter, the popular microblogging service, attendees post a short "tweet" about the session topic, the presenters, and general goings-on. However, it occasionally devolves into snickering and more. The Chronicle of Higher Education reports the fallout from one professional conference and reaction from readers. The Social Media Group also reports about it too. Check it out and be on the lookout the next time you are presenting at a conference.