Facebook is one of way, waaay too many companies doing the datastalking thing. But heck, they're not even among the worst (yet). Check out:
The Wall Street Journal: "What They Know"
"Marketers are spying on Internet users -- observing and remembering people's clicks, and building and selling detailed dossiers of their activities and interests. The Wall Street Journal's What They Know series documents the new, cutting-edge uses of this Internet-tracking technology. ..." Source [blogs.wsj.com...]
(After seeing their detailed info, this habitual user of dictionary.com (dictionary.reference.com) will never go there again.)
GM vehicle + OnStar = you're being GPS'd and your cell phone calls are being monitored WITH the right to sell the data even if you do not subscribe to their service.
Don't pay for OnStar? Doesn't matter, it's never turned off. In fact if you try and "unplug" your onstar you can expect it to react by sending error codes and acting like you're trying to steal the vehicle. My point is that Internet privacy concerns extend far beyond the internet. BIG BIZ thinks it has a right to sell it's customers information in general but they don't want you to know it's happening. Big brother knows where you went last night!
Onstar gave in to privacy pressure [content.usatoday.com...] but will Facebook? Will other companies? Lord knows Google will not, ever. That article might give us clues on where to apply pressure to get the same results.