"Sometimes identifying information about you – your name and maybe your friends’ names – is theoretically being passed on from Facebook to apps and then to advertising networks. Along the way it’s being stored by various companies that are in the business of gathering data about people to resell to others, chiefly Rapleaf.
The way this is being done is via referrer URLs (99% of the general population just got lost on what those are), which can contain profile IDs. Which can then be used to look up users. And whatever information that user has in his or her public profile can then be scraped and added to a database.
And then…well, nothing. It’s in a database. And theoretically can be used to target ads to you.
The only real concern is that all that data can also be tied to you doing something with a third party app. So in addition to your profile information, the database also gets to know that you like Farmville.
Is this a real problem? No..." - Michael Arrington
(thanks for letting the rest of us know that it's ok to have our names and personal info passed around the web, sold to the sleaziest bidder. very big of you to set us 'paranoids' right. question: how much did they pay you to write this piece of filth? -fc)