I currently do not tweat.  After reading these two articles I am wondering how I could embrace this tool for my classroom.

http://www.usnews.com/articles/education/2009/06/15/tweeting-your-way-to-better-grades.html

http://www.usnews.com/articles/education/2009/06/02/twitter-goes-to-college.html

Do you use twitter for teaching?  How so?  Share your story.  Also, if have another story link please pass that along. 

Was that 140 characters?