Have you twitted? Twitter can be used to track friends and send short messages
either to a select group of people or the world, online and by mobile phone. My colleagues use it as an in/out board. Can it be used to facilitate learning? Apparently, yes. AcademHack: tech tools for Academics describes a Twitter assignment in which students virtually followed classmates over a weekend to explore new media. The success of this assignment inspired 13 (thirteen!) ideas for using Twitter in the classroom.
For more, see the Educause Learning Initiative 2 page document “7 things you should know about Twitter“.