For a few years now Sylvia Rosenthal Tolisano has been my go-to person for ideas and information about using social media with elementary school students. This summer Sylvia wrote a number of excellent blog posts containing sound information for anyone that has questions about using social media in elementary school classrooms. A couple of weeks ago Sylvia published an eight page guide to Twitter In The K-8 Classroom. The guide is available on Scribd and on Sylvia's blog. I encourage you to read her post about it.