"Also, "user-generated" implies that they do not intend to compensate their posters and increasingly, we have found, along with HuffPo, Mashable and others, that having quality content on a sustainable basis means you may have to pay for it."
Spot on. Content curation is an effective marketing strategy, but only when the content is high quality. That means brands must either invest resources in talented and knowledgeable writers, researchers and journalists, or invest a big chunk of time into building community. Maybe LinkedIn's latest dip in value was a catalyst? Thanks very much for your comment!