1. A system for performing query-dependent and content-class based ranking, comprising: a processor; and a memory coupled with the processor, wherein the memory is configured to provide the processor with instructions which when executed cause the processor to: store, using a data storage device, web services data associated with a web site, wherein the web services data comprises content on the web site; and receive, using a query-dependent and content-class based ranking system, a query for a search for content on the web site; perform a query-dependent and content-class based ranking of content available on the web site, comprising to: determine a query-dependent score for content available on the web site based at least in part on the query, comprising to: weigh a first value associated with a first attribute of the content by a first weight to obtain a first weighted score; weigh a second value associated with a second attribute of the content by a second weight to obtain a second weighted score, the first weight being different from the second weight; and calculate the query-dependent score based on the first weighted score and the second weighted score; determine a content-class score for content available on the web site in response to the query, comprising to: determine a first content-class performance score based on a first query-dependent score, the first query-dependent score being associated with a first content item; determine a second content-class performance score based on a second query-dependent score, the second query-dependent score being associated with a second content item; and determine the content-class score based on the first content-class performance score and the second content-class performance score; and determine an overall score for content available on the web site based at least in part on the query-dependent score and based at least in part on the content-class score; and return a ranked list of content based at least in part on the query-dependent and content-class based ranking of content available on the web site in response to the query.
10. The system recited in claim 1 , wherein the query-dependent and content-class based ranking system is in network communication with the web site.