13. A computer-readable, non-transitory storage medium storing computer executable instructions that, when executed by one or more computer systems, configure the one or more computer systems to perform operations comprising: receiving information identifying a plurality of stories of interest to a user; identifying a plurality of referents that are referenced in content of one or more of the plurality of stories of interest to the user; determining, from among the plurality of referents, a referent of potential interest to the user, wherein the referent of potential interest is determined based at least in part on a count of how many of the plurality of stories of interest to the user are associated with the referent of potential interest, wherein the referent of potential interest is determined based at least in part by identifying that the referent of potential interest is referenced in at least a portion of content of each of two or more of the plurality of stories of interest to the user; and determining a recommended story for the user, wherein the recommended story is determined based at least in part on a determination that the recommended story is associated with the referent of potential interest to the user.
14. The computer-readable, non-transitory storage medium of claim 13 , wherein determining the recommended story for the user comprises determining a score for each of a plurality of stories based at least in part on a number of associations between each story and the referent of potential interest.