People always asks us this. Old people ask us this, we should say. And usually it comes off more like a statement than a question, so we rarely bite. But when we do, here is our sad explanation: "It's, like, short emails. Or Facebook's "is" blurbs without the annoying profile, or...people saying how they feel, we guess. Not sure, really." Anyway, if you don't know what it is, check out Twistori. It simply aggregates......