15. The non-transitory computer readable storage medium of claim 9 , wherein the at least one author identifier of the one or more author identifiers that represent the second user is deemed to be associated, in a social network application, with the confirmed candidate identifier in accordance with a determination that the first user and the second user are connected in the social network application.
9. A non-transitory computer readable storage medium, storing one or more programs for execution by one or more processors of a server system, the one or more programs including instructions, which when executed by the one or more processors, cause the server system to: receive a search query from a first user; obtain a plurality of candidate identifiers representing the first user, wherein the plurality of candidate identifiers is generated using all or a portion of a name of the first user; provide the first user with a query as to whether they are associated with a first candidate identifier in the plurality of candidate identifiers including: (i) provide the first user with an annotation comprising identification of a second user and a first affordance to confirm the first candidate identifier when the first user selects the affordance; (ii) detect selection of the first affordance; and (iii) in response to detecting selection of the first affordance, confirm the first candidate identifier is associated with the first user; identify a social network set of search results that (i) matches the search query and (ii) satisfies a social network criteria for the first user, wherein: the social network criteria is satisfied for a respective search result when the respective search result is annotated by the second user, distinct from the first user, represented by one or more author identifiers, and at least one author identifier of the one or more author identifiers represents the second user and is associated, in a social network application, with the confirmed first candidate identifier; and identify a particular social network application on which the first user and the second user are potentially connected; and format for concurrent presentation to the first user: (i) a search result, in the social network set of search results, published on the particular social network application by the second user, and (ii) information identifying the particular social network application.