As part of the ISTE Professional Learning Series I hosted a webinar on Twitter in the K 12 classroom. Below are the slides to my presentation. Here is a link to the archived webinar. I have compiled additional resources on a Google Doc Some people have requested to see the Parent Permission and Code of Conduct that I sent home for parents and students to sign before beginning the twitter book chats with my middle school students.
The Teaching Factor
Learn Something New Daily, Teach What You Love
The Teaching Factor 
I loved your webinar and found it so informative! It is because of you Michele that I am becoming more and more at ease with Twitter chats, thanks! See you Sunday night at #istelitchat