In a widely read essay called “Creators, Synthesizers, and Consumers,” Bradley Horowitz, now a vice president of product at Google, described the 1 percent of users who create versus everyone else: 1% of the user population might start a group (or a thread within a group) 10% of the user population might participate actively, and actually author content whether starting a thread or responding to a thread-in-progress 100% of the user population benefits from the activities of the above groups (lurkers)19
