I'm still not sure about the whole Facebook thing, but this is a video that makes me think twice about the whole endeavour.
"By posting User Content to any part of the Site, you automatically grant, and you represent and warrant that you have the right to grant, to the Company an irrevocable, perpetual, non-exclusive, transferable, fully paid, worldwide license (with the right to sublicense) to use, copy, publicly perform, publicly display, reformat, translate, excerpt (in whole or in part) and distribute such User Content for any purpose on or in connection with the Site or the promotion thereof, to prepare derivative works of, or incorporate into other works, such User Content, and to grant and authorize sublicenses of the foregoing. You may remove your User Content from the Site at any time. If you choose to remove your User Content, the license granted above will automatically expire, however you acknowledge that the Company may retain archived copies of your User Content."The "get out clause" is of course to close the account, but they will retain copies of the content nonetheless. I must not be the only person who finds this troubling.
Furthermore, here is a funny legal conundrum for you. According to the above, I'm granting Facebook a licence to use the work because all of my posts from my blog are sent to Facebook, but my blog is published under a Creative Commons licence. Which prevails?