1. A computerized method for identifying needy queries for which additional responsive content is needed, the method comprising: retrieving a plurality of content items in a result set identified as responsive to a query; electronically generating, via a processing device, a score for the plurality of content items identified as responsive to the query; calculating an average of the scores associated with the plurality of content items identified as responsive to the query; determining the query is needy based upon a comparison of the calculated average of the scores with respect to a needy query score threshold, wherein a query is needy based on the calculated average of scores associated with the plurality of content items failing to meet the needy query threshold; and identifying additional content items responsive to the query to supplement the plurality of content items in the result set.