Cacoo

I like Cacoo as a tool for both teachers to collaborate and for students to collaborate in managing projects with timelines, maps and deliverables.

I also feel this is a great tool to communicate and utilize visuals.  I like the diverse library of templates.  I feel that it can spark creativity and give them a format to chat with anyone other students or the teacher. It also provides a format for feedback.  It gives you the opportunity to turn what information you have in your head into a more organized format.