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I haven't looked at it in detail but I assume this is done with javascript so that the site doesn't actually see you or your friends, Facebook just includes a

• jfager 16y ago
  That's not the case. With Instant Personalization, "partner sites" do, in fact, get access to your information just from you visiting them while logged into Facebook. With Social Plugins, any site can embed a widget that works like you described, but as soon as you interact with it, that site will be able to find that interaction by tracking back to the page that Facebook sets up. http://www.facebook.com/#!/help/?page=1068 http://www.facebook.com/#!/help/?page=1068
  • poutine 16y ago
    Hmm, well it's not so bad then. If I want to stay anonymous then I'll not click on the like or comment or whatever. Seems reasonable.
    • jfager 16y ago
      That only works for Social Plugins, though, not Instant Personalization-approved sites. The issue isn't that there aren't ways to protect yourself (there were for Buzz, as well). The issue is that you have to be aware this is happening at all (FB doesn't go out of its way to tell you), and then you have to opt-out, rather than opting-in. Any change that reduces privacy should be strictly opt-in. Period. The fact that Facebook, Google, and others are trying to push for an opt-out model because they're afraid of not getting widespread adoption otherwise is pretty disturbing.
• deleted 16y ago
  [deleted]