1. A method comprising: identifying a user interaction in a social network system, wherein the user interaction is without a corresponding explicit social graph connection, involving both a first social network object and a second social network object, in a social graph of the social network system; generating an implicit social graph connection between the first social network object and the second social network object based on the user interaction; and storing the implicit social graph connection in the social graph of the social network system; and providing a social network service that selectively presents, based on the implicit social graph connection, a content entry to a client device of the social network system.