23. The system of claim 17 , wherein the event processing system configured to determine the interaction analytics for the set of users having interacted with the plurality of content items is further configured to determine a set of content item preferences for at least one user of the set of users.
24. The system of claim 23 , wherein the event processing system is further configured to determine a time during which the at least one user of the set of users is interacting with the plurality of content items of the catalog and present an advertisement for a third content item based on the set of content item preferences for the at least one of the set of users and based upon at least one of a content identifier associated with the third content item and metacontent associated with the third content item.