I wanted to let those who use Facebook, that I suspect some of your accounts may have been hacked. Not bad hacked but, none the less hacked. They have ways to farm your friends list away from you. If you experience the receipt of friend requests from people you are already friends with...this may be the case for you too. I had (6) friend requests from individuals I was already friended too. A dead giveaway is these requests won't include a picture. If you receive these from anyone you know, just deny the request and you should be good to go.
So, if we were friends on facebook and suddenly you discover we're not - don't be alarmed. I just did some cleaning and will re-request these associations once I'm convinced I got to the bottom of this.
Thanks!
TKO