Soapbox is superb!

I was reading about a new site/tool called Soapbox last night on Free Technology for Teachers.  Being the Ed Tech geek that I am, I immediately signed up for the free service and tried it in my class today!  Wow!  It is awesome.  This tool lets students back-channel while you are teaching.  They can post a question and either the instructor or another student can post a response immediatly.  It also filters inappropriate content, which is great for the classroom!   Take a look to see it in action!

The demo video from the Soapbox site