13. The method of claim 1 , further comprising: receiving a query including one or more query terms that describes an audience that a consumer is attempting to target; searching the database for matching user lists based on the query terms; and presenting matching user lists responsive to the query.
13. The method of claim 1 , further comprising: receiving a query including one or more query terms that describes an audience that a consumer is attempting to target; searching the database for matching user lists based on the query terms; and presenting matching user lists responsive to the query. 19. The method of claim 13 , wherein the received query includes use data describing an intended use of data in a candidate user list and the method includes providing user lists that include subscription restrictions that match and allow the use.