Bubble.us – free concept mapping

Bubble.us is a great freebie that allows its users to visually collaborate and/or organize projects.  Below is a quick concept map that I created for past workshop I have taught.  I am thinking of how I can move some of my sessions online.  Each objective should list specific course materials (readings, resources and rubrics), high quality discussions that embed critical thinking skills, and assignments/projects as evidence of the user's newly developed podcasting skills.  As you look at my map - what else should I add?  Maybe quality feedback from the student to the instructor and visa versa?

You should be able to zoom in and out and move the map around to read it better!