1. One or more computer-readable media having computer-executable instructions embodied thereon that perform a method for generating a related content item query, the method comprising: receiving the first content item query; storing the first content item query in a query log, the query log having at least one of user interaction data and content item metadata associated with a plurality of content items; presenting a collection of content items based upon the first content item query; and for one or more of the content items in the collection of content items, generating a related content item query based upon the at least one of the user interaction data and the content item metadata stored in the query log.