On September 25, Nik Cubrilovic posted a terrific analysis looking at how Facebook uses cookies to track users even when they have signed out of the service. His findings about Facebook cookie tracking raises yet more red flags about subscriber privacy. We asked and he granted permission to repost the analysis, which differs in two subtle ways from the original: Slight editing for house style and incorporation of two updates into the main text. We also changed the headline.

Dave Winer wrote a timely piece yesterday morning about how Facebook is scaring him since the new API allows applications to post status items to your Facebook timeline without a user's intervention. It is an extension of Facebook Instant and they call it frictionless sharing. The privacy concern here is that because you no longer have to explicitly opt-in to share an item, you may accidentally share a page or an event that you did not intend others to see.

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