Abstract: A system and method for managing advertisements in a syndicated feed is described. One embodiment includes a method for expiring an advertisement space in a feed. This method includes the following actions: receiving a data item associated with a feed from a publisher; determining whether an advertisement space should be associated with the data item; inserting a markup of the advertisement space into the data item; providing the data item for a user; receiving a request from the user to view the advertisement corresponding to the advertisement space and the data item; determining whether the data item is older than a threshold age; providing an advertisement to the user if the data item is not older than a threshold age, wherein the advertisement is viewable in the advertisement space; and providing a blank advertisement to the user if the data item is older than a threshold age.