This a great tool where you can post questions or comments on a wall that is interactive. We used it during a school wide staff meeting and it worked really well. It served as a "parking lot" for questions so it didn't disrupt the flow of the meeting. We also had other teachers and administrators responding to the questions/comments in real time. See the description below..
Brainstorm with students from your own school or from other schools. This program allows you to post stickers with your ideas onto a virtual wall. You can embed your wall on a website or blog.