Digiday: Publishers are jumping into events as a way to generate a new source of revenue as traditional advertising becomes harder to come by. But inevitably, as more players pile into this space, it becomes harder to stand out. One of the ways Bloomberg Media aims to stand out may raise eyebrows. To make its events more appealing, Bloomberg is experimenting with making one of its three tentpole events, Bloomberg: The Year Ahead, mostly off the record. That goes against common practice at conferences by other leading publishers.