Well, it had to happen sooner or later.  A parent has filed suit against some middle school boys regarding things they said about the man’s young daughter.  The father, a Houston area lawyer, sued the boys over a video posted by the boys regarding his daugther.  See Texas Lawyer report.  The father, acting as "next friend" to his daughter, sued the Houston area boys for libel.   The suit claims the boys claimed untrue facts, and made suggestive, derogatory comments regarding his daughter.  Two of the boys filed pro se answers via relatives denying liability. 

Facebook has become a way of life for many middle schoolers.  This may be the first of many such lawsuits.