Facebook tracking puzzlement
December 13, 2007 7:42 AM Subscribe
How does Facebook's new Beacon feature work?
posted by tastycracker to Computers & Internet (14 answers total) 1 user marked this as a favorite
Recently Facebook installed this feature called Beacon that sends information from affiliated websites to your Facebook profile even when you're logged out of Facebook and heck, even if you've never registered
with Facebook (as explained in this article
What I haven't found anywhere is a thorough explanation of exactly how the new Beacon feature knows how to associate you with your Facebook profile - which seems to be the useful part of the feature. You want what your friends want right? But how does Beacon make the leap from the raw data to your profile? What sort of information do they use to make the match? Your name? Email?
I suppose if you're the sole user of a computer the gathering of data is straightforward enough but suppose you have multiple Facebook profiles? Or several people use the same computer? Or I don't have a Facebook profile but my friend who visits occasionally and uses my computer does? It's one thing associating your own information with your own information, but is it possible that the two could become mixed up? What happens when Facebook says I purchased "One Night in Paris" to all my friends, but I actually didn't?