This is a must for teachers who want to keep a classroom social media account. I've found that it kills two birds with one stone: You alert parents to the fact that you do plan on using Twitter; plus, it's an effective way to keep track of who is not allowed to appear in any pictures or special social media classroom projects.
This teacher used a classroom Twitter account to ask questions and chart the number of replies. Definitely a useful resource with a real world example on how Twitter can creatively be used to teach probability.
A colorful, simplified PDF, written by a teacher and for teachers, that gives educators useful tips on how to use Twitter. The real gem in this resource is the advice the author gives on how to use Twitter to enhance students' classroom engagement and teachers' professional development.