7. The method of claim 1 , wherein the selected label type comprises ads selected by or displayed to the users.
7. The method of claim 1 , wherein the selected label type comprises ads selected by or displayed to the users. 10. The method of claim 7 , wherein outputting a value of a label of the selected label type for a particular media node comprises determining a value for a particular ad label associated with a particular video represented by the particular media node.