I think Twitter has actually done a poor job of communicating what they are.<p>They got pigeonholed as being about "what I had for lunch" and they haven't totally broken out of that in the mind of the broader public.<p>Their internal documents that leaked to TechCrunch indicated that they have a much clearer and more ambitious vision internally, they really need to get that across to the general public.<p>It feels like there's some internal conflict about their commercialism vs their desire to be hip.  That's a hunch, though.