A lot of people use Twitter, obviously, but how is micro-blogging interesting for a teacher or education personnel in general? I think it's an amazing tool for professional development and so do quite a few very interesting pedagogues from all over the world. In this 5 minutes-or-so video (the end credits take a couple of minutes ;o), I explain some of the advantages of using Twitter in such a context. Let me know what you think @malalande on Twitter or "like" or comment the video right here on YouTube.