“As the speakers ran through their PowerPoint presentations, the room hummed with the tip-tap of IM chatter. ‘Is this really an economic issue?’ wrote one audience member in response to a presenter’s remark. ‘Experiments like this are too structured,’ wrote another. ‘Did he really just say that?’ asked one. ‘Wow! He did,’ someone responded.’
Perhaps instead of filling out a pointless evaluation sheet at the end of a lecture, the presentor should just get a transcript of the IRC channel is use during that lecture. That, more than anything, would indicate what people thought about it.