14. The method of claim 13 , wherein using the similarity rating comprises: determining resources in a prior search document; and rating the resources based on the similarity rating.
14. The method of claim 13 , wherein using the similarity rating comprises: determining resources in a prior search document; and rating the resources based on the similarity rating. 16. The method of claim 14 , wherein rating the resources comprises: determining a contribution value based on the similarity rating and an indicativeness rating for each resource; and determining a recommendation value based on contribution values for similar resources across the prior search documents.