The first point under the safety section of the document readsYou will not send or otherwise post unauthorized commercial communications to users such as spam.

Disclaimer The Above image is not a real sponsored update. It is not surprising that such a rule would be implemented. In fact, it would not be surprising to see Twitter follow suit, especially with the recent attention the FTC has paid to this kind of thing. Word of mouth is one of the most effective forms of marketing, but that becomes tainted once your friends have sold out. Facebook says that it has received requests for a redlined version of the Statement of Rights and Responsibilities to help people better understand the updates theyre proposing. The company says theyre working on this and plan to post it to the Facebook Site Governance Page soon.