"U There" End User Computing Security

There needs to be better Data Loss Prevention applied to Social Media than there exists today and how that will be applied globally is a huge issue. But it is a growing trend. I see on twitter from those I know many things that should not appear: from the discussion of internal only intellectual property to locations sent to 4 square. Add into this, the myriad forms of ‘U There’ requests. It is so easy to tell people anything on twitter, that it also becomes a problem with telling people too much even in 146 characters. Yet, I also see the same when using text messages, chat, and other technologies. So what is the solution?