Being in the conference business I naturally pay attention to what other conferences do. The back-to-back 15-30 minute keynotes at ETech were great – I can’t remember the last time I actually sat through an entire morning of “keynotes”. One downside though is that speakers are not used to this and some are unhappy about it and spend an awful lot of their valuable 15 minutes talking about how they are not going to say something because they only have 15 minutes.