SYSTEMS AND METHODS TO FACILITATE SEARCHES BASED ON SOCIAL GRAPHS AND AFFINITY GROUPS

Business, recommendation, and social relationship graph information for businesses may be received from a data source social networking website, where each business is recommended by users. The recommendation information may indicate users that recommend certain businesses. The social relationship graph information may indicate user-specific networks of social relationships on the social networking website. For a user query including business and affinity group selection criteria, business, recommendation, and social relationship graph information may be searched to select businesses that: match the business selection criteria; and are recommended by users having social relationships within a maximum degree of closeness with the querying user and being in an affinity group matching the affinity group selection criteria. The selected businesses may be ranked based on numbers of recommending users and social relationship graph information. A search result, with businesses indicated in a rank order and with business and recommendation information, may be provided.