RE: Facebook or RCU
I've noticed that many times when they make changes to the format on Facebook, your privacy controls go back to the "default" settings, and you have to go back and reset them to your preferences.
Someone posted earlier about Facebook sending out invitations to everyone in their address book. NEVER give Facebook the password to your e-mail account. The only way they can get it is if you give it to them. It's asked for in such a way as to make you think you are checking into your own account, and I will admit I almost did it, but then I looked very carefully and decided they shouldn't be allowed to take control of my e-mail account.
But as far as the question FB or RCU, they're entirely different entities. I look at both about an equal amount of time, maybe FB a bit more time.