1. A method comprising: generating a map interface for presentation to a viewing user of a social networking system, the map interface identifying a representative geographic location associated with an aggregated content item, the aggregated content item including a plurality of content items, each of the plurality of content items associated with the viewing user and an action performed by a user connected to the viewing user via the social networking system; selecting a representative content item from the aggregated content item for generation of an information display for presentation in association with the representative geographic location, the selecting comprising: retrieving one or more content items included in the aggregated content item; for each of the retrieved content items, determining a measure of affinity of the viewing user towards the user connected to the viewing user via the social networking system and associated with the respective content item, wherein the affinity of the viewing user with the user connected to the viewing user is determined based at least on past interactions of the viewing user in the social networking system, the past interactions associated with the respective content item; ranking the retrieved content items based on the determined measures of affinity; and selecting the representative content item from the ranked content items; and generating the information display based on the representative content item; and sending the information display for presentation to the viewing user in association with the representative geographic location.