It works by asking your browser if you are logged into Facebook.
Just did this myself. Here's more detail on what exactly happens:
-You buy ticket on Fandango
-Once the order goes through, a Facebook-looking window slides up from the bottom-right corner telling you that it's going to post a notice on your News Feed.
-If you do nothing, it apparently posts it.
-If you click "No thanks," it doesn't post it.
-There's also a "More information" link that sends you here:
www.facebook.com/help.php?page=56
which includes the following:
"Affiliate websites will generate stories about your actions when you visit them only if you are logged in to Facebook at the same time. You will always be notified when another website wants to publish a story about you. So if you're on Fandango buying some tickets, and you don't see the little notification pop up in the corner of your screen, that means there is no story being generated. If you do see this notification jump up, you can opt out of having that particular story published by clicking "no, thanks"."




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Posted November 9, 2007 | 12:01 PM (EST)