20. The search engine of claim 14 , where the commercial engine determines a commercial score for the organic search results returned in response to the search query that have a highest number of bidders by analyzing a landing page associated with each organic search result for commercially-related content.
14. A search engine for optimizing relative positions of sponsored and organic search results on a search results page displayed to a user, comprising: a processor and a memory coupled with the processor; a database including organic and sponsored search results, the database coupled with the processor; a communication interface, coupled with the processor and the database, to receive the query from a user and to deliver one or more search results pages to a browser of the user in response to the query; a commercial engine, coupled with the processor and the database, to calculate a degree to which the search query is commercial and to save the calculated degree in the database; and a delivery manager, coupled with the processor, the database, and the communication interface, the delivery manager to receive the query from the communications interface and to direct the communications interface to deliver a plurality of sponsored search results in at least two columns, with the organic search results in at least a third column, of the one or more search results pages in response to the search query, where a layout of the at least three columns depends on the degree of commerciality of the search query; where the degree to which the search query is commercial is based on an analysis of one or more of the organic search results associated with advertisers that also bid on search terms related to the search query.