1. A method, comprising: identifying a user connected to a network; for each of a plurality of items, determining for each of one or more followers of the user, a probability that the corresponding one of the followers of the user will repost the one of the plurality of items; selecting a number of the plurality of items based, at least in part, on the probability that has been determined, for each of the plurality of items, for each of the one or more followers of the user, that the corresponding one of the followers of the user will repost the one of the plurality of items; and presenting the selected number of the plurality of items to the user.