Social Graph API

Most individuals have a number of public profiles and blogs. But it can be tedious to make all the connections with all your contacts from one site to another. Enter the Social Graph API, which shows public connections between people. Programmers can use this data to come up with an “add friends” functionality. Publicly available information and relationships from indexed webpages are used for this API. The Google crawler looks for links indicating that a profile is a “friend” or “me”. Open standards like XFN (XHTML Friends Network) and FOAF (Friend Of A Friend) are used to show relationships. Test drive the example apps such as Site Connectivity, My Connections and Parameter Playground.

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