Twitter

Alan Lew has a blog post about Twitter, where he has pulled together a bunch of references and discussions, and suggested various educational uses. Twitter is blocked at my work as we have youth correctional sites on our network, so I can't use it as much as I'd like to, Can't even grab a screen shot for this post. But I'm interested in how learners might use this service. It is writing, after all. Is Twitter part of the new literacy?