Abstract: Methods and systems directed to aggregating social content from social networking sites, and making the social content available for searching is disclosed. Social content, corresponding to multiple computer users, is obtained from a plurality of social networking sites. The social content is stored in a content store, making it available for searching. In response to receiving a search query (directed to social content), a set of search results is identified, the search results including at least one item of social content obtained from a social networking site. The social content in the search results is filtered according to privacy constraints. A presentation of the filtered search results is generated and provided to the requesting computer user.

Abstract: Systems, computer-readable media, and methods for tagging documents based on a graph pertaining to one or more entities which a user has included in a search query. The user may have at least one social networking relationship with the entity. A search engine is configured to display a search engine results page in response to the search query received from the user. The search engine may also receive suggested tags that identify documents that could be linked to the entity identified in the query. The user may confirm that the suggested tags are appropriate via feedback that is transmitted to the search engine. In turn, the search engine updates a graph to reflect a number of users that agree with the suggested tag.

Abstract: Systems, methods, and computer-readable storage media for tagging uniform resource locators (URLs) included in a search engine results page are provided. Upon receipt of a search query that includes a name of an entity, the server device provides search results and entry fields to tag one or more URLs that correspond to the entity. The server device obtains a social network of the user that provided the query. The server device processes the social network to locate entities that match the query and that are within a threshold number of hops. The user may tag one or more URLs with social network account information for the entities based on authorization information received from an owner that manages the social network account.