Well not quite, although Facebook has recently changed its terms and conditions to include a section granting them control over all the content you've ever created on-site - even after you've unsubscribed.

"You hereby grant Facebook an irrevocable, perpetual, non-exclusive, transferable, fully paid, worldwide license (with the right to sublicense) to (a) use, copy, publish, stream, store, retain, publicly perform or display, transmit, scan, reformat, modify, edit, frame, translate, excerpt, adapt, create derivative works and distribute (through multiple tiers), any User Content you (i) Post on or in connection with the Facebook Service or the promotion thereof subject only to your privacy settings or (ii) enable a user to Post, including by offering a Share Link on your website and (b) to use your name, likeness and image for any purpose, including commercial or advertising, each of (a) and (b) on or in connection with the Facebook Service or the promotion thereof."

Would it not sting like acid in the eye to have mighty Facebook make money from your content - say in their advertising - without credit - after you've sacked them off? Perhaps you'd feel sorry for them being worth only 3.7 bill at the moment? The news comes straight after YouTube announced a pilot with creative commons.

Thanks to The Consumerist.