<http://schema.org/description>
"Direct messages, one of the oldest features of Twitter, is finally getting a revamp. A new setting that's been slowly rolling out over the last few days will give users the choice to ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/twitter/2013/10/15/twitter-now-gives-users-option-receive-direct-messages-followers/>