16. The computer-implemented method of claim 15 , wherein the first weighting is further based at least on a relationship W, wherein relationship W is defined substantially as: 
 T*C, where T comprises the first percentile, and C comprises the first quantity of the first search concept in the first segment.
15. The computer-implemented method of claim 14 , wherein the at least one search concept comprises a first search concept and a second search concept, and wherein determining the first ranking associated with at least the first segment comprises: determining a first quantity of the first search concept in the first segment, and a second quantity of the second search concept in the first segment; accessing first histogram data associated with the first search concept, and second histogram data associated with the second search concept; and determining a first percentile of the first quantity from the first histogram data, and a second percentile of the second quantity from the second histogram data, wherein the first ranking comprises first and second weightings based at least on the first and second percentiles.