I have just visited the wallwisher site and have created a wall. I am working to find a way that this tool could be used in a 7th grade math class. It was certainly easy to create the wall and post to the wall. I am not certain how it would be with 160 sticky notes if all the students were required to post a comment or solution to a math problem. I will investigate and see if I can find a math teacher who has successfully used this tool for their class. My wallwisher wall can be found at
<iframe src="http://wallwisher.com/embed/pence7thmath" frameborder="0" width="100%" height="400px" style="border: 1px solid #999999"></iframe>
I just set up an Edmodo account. I like the format and it looks pretty easy to use. I have not completed the set up since I need to add students/groups to my account. I have not students yet. I know that students are already used to using Edmodo in subjects such as Language Arts so they would be able to use it if I were to find a way to work it into the math program.