Emmm... interesting Facebook Terms & Conditions~

http://www.dallasphotoworks.com/my_weblog/2009/02/facebook-we-can-do-whatever-we-like-with-your-photos-forever-and-even-if-you-delete-them-later-have-.html

or here for a more original post:

http://consumerist.com/5150175/facebooks-new-terms-of-service-we-can-do-anything-we-want-with-your-content-forever