1. A computer-implemented method of identifying information of interest within an organization, wherein the organization includes a structured body of users with associated roles within the organization and who have access to information items within the organization, the method comprising: determining use data that characterizes relationships among the information items with respect to users within the organization, wherein the information items include user data and collections of information items; generating interest data indicating affinity among the information items based on the determined use data; receiving a request for a feed or set of information items from a particular user; and responding to the request by providing one or more items based on the generated interest data.