1. A system, comprising: a citation search engine, which in operation, retrieves a plurality of citations composed by a plurality of subjects citing a plurality of objects that fit one or more search criteria; an influence evaluation engine, which in operation, computes relative expertise of the plurality of subjects that compose the plurality of citations of objects; an object/subject selection engine, which in operation, ranks the cited objects of the plurality of citations using the relative expertise of the subjects; selects objects as the search result for the user based on the matching of the objects with the search criteria as well as the relative expertise of the citing subjects.