I am currently in a workshop with Steve Dembo and we are using Wall Wisher. What is Wall Wisher? It is a place where you can create virtual sticky notes and invite others to participate by providing them the URL. They then can add their own comments to your post. How could you use this in the classroom? You can post a debate question or statement and have students answer it. You can add images of animals and have students sort them.
You do not need an account to use this site. If you want to moderate comments, you must create an account. The possibilities are endless.
Here is a wall that I created. Please take the time and answer my question. Thanks.