1. A method comprising: using at least one data processor, constructing a plurality of sets having social network service members as entities by associating each of the social network service members with each of a predetermined selection of professional outcomes by school of graduation of the member; selecting one of the plurality of sets; using a similarity algorithm, calculate the similarity score of at least some of the plurality of sets in the plurality of sets to the selected one of the plurality of sets; and presenting for rendering the k sets in the plurality of sets with the highest similarity scores.