A secure social networking website for teachers and students to connect over the computer. Also an app for it, so you can post and respond through your apple device!
this goes into detail about how you can use facebook and twitter effectively inside the classroom and even gives you a way to create a facebook page for your specific class to get information from
This article discusses a state law in Missouri which would outlaw teachers and students communicating through facebook. The article offers quite a few opinions on the social networking and teaching being used together.
ePals is the social network optimized for K-12 learning. Over half a million classrooms in 200 countries and territories have joined the ePals Global Community to connect, collaborate and exchange ideas. ePals now translates in 35 languages!