10. A computer program product comprising a non-transitory computer-readable storage medium storing executable code, the code when executed performs steps comprising: maintaining connections between users of a social networking system; identifying a second user that is connected to a first user in the social networking system; identifying a third-party content object associated with an interest of the second user, the third-part content object associated with a geographic location of an entity located at the geographic location; determining a measure of likelihood for the third-party content object associated with the interest of the second user, the measure of likelihood describing whether the second user is interested in the third-party content object; determining that the first user is nearby the geographic location associated with the third-party content object; and providing a notification to the first user regarding the third-party content object associated with the interest of the second user responsive to determining that the first user is nearby the geographic location.
15. The computer program product of claim 10 , wherein determining the measure of likelihood for the third-party content object comprises: determining a location value for the third-party content object, the location value based on a proximity between the geographic location associated with the third-party content object and a location associated with the second user; determining an interest value for the third-party content object, the interest value based on whether a category assigned to the third-party content object is included in one or more categories associated with affinity information for the second user; determining a time value for the third-party content object, the time value based on whether a current time is within the delivery time range assigned to the third-party content object; determining a connection value for the third-party content object, the connection value based on a number of connections of the second user associated with the third-party content object; and combining the location value, interest value, connection value, and time value to determine the measure of likelihood.