As a (short) article in Time points out (Sept 1, 2008), Twitter has inspired something called "Mini-lit" - examples, The 5 Word Theater Review, The Six Word Memoir, The 12 Word Novel.
But short, content-rich media bits have been around for a lot longer than Twitter. They're called TV and radio ads. I remember quite a few years ago sitting in the studio chopping out whole phrases and sentences till the wordy script fit nicely into 15 sec. That's not very many words, but it always surprised me how much you could say in that little bit of time.
We're doing the same thing with web videos. Our little product is called Quick Web Videos. Short and sweet. None of this talking head stuff blathering on and on about nothing.
