1. A computer-implemented method comprising: receiving in a search system a query from a user; identifying members of a social affinity group of the user, the social affinity group having members having a relationship to the user; receiving search results responsive to the query from a search engine, the search results including search results that reference resources associated with members of the social affinity group; identifying among the search results a first search result that references a social network site; identifying among the search results a second search result that references a resource that is found on the social network site and is associated with a member of the social affinity group; and generating, for presentation to the user, a response to the query, the response comprising instructions that the first search result be presented in proximity to the second search result.