Yesterday my friend posted the following article on her status http://keithhennessey.com/2013/04/24/smarter/
The timeline that she copied it from and hers both had the article deleted. Apparently Facebook found the article not in keeping with their TOS. We're still trying to figure out why as there isn't anything we can see that is against the TOS.
So if you're on FB share this like crazy! Let's drive them nuts!