Abstract: An economy is created where users compete to get their search lists shown based on a set of criteria. The search lists can be displayed after the users pay a rent associated with a query. The search lists continue to be displayed if search lists are popular with the public. If a search list is popular, it earns revenue for the creator of the list. If the search list is not popular, it is removed from being displayed and receives no further consideration. The creator initially creates a search list for a low-valued query and moves up to creating a search list for a higher-valued query if the creator can pay the higher rent associated with the higher-valued query. The creator earns more revenue when targeting higher-valued queries. The creator continues to create search lists until the highest-valued queries are reached.