1. A computer-implemented method comprising: accessing one or more content items accessible via a network, each of the content items having received one or more social activity signals; identifying members of an online social network service that submitted the social activity signals; accessing, by a machine including a memory and at least one processor, member profile data identifying member profile attributes of the members; and generating social attribute information associated with each of the content items, the social attribute information identifying the member profile attributes of the members that submitted the social activity signals associated with each of the content items.