The micro-blogging tool, Twitter, has become a key social networking tool for educators. It's become so popular, that even Google has created a Twitter plug-in.
Seemingly to justify the many tools that are evolving in support of twitterers, this tiny but mighty application continues to make headlines. To help tell a few recent stories (Rocketboom-Twitter-eBay anyone?), and to give an overview of this tool, I've created a twitter-sized (280 second) screencast video: