DC Digital Literacy: Share Resource

Communication - Google Drive, our school is set up with Google Drive, it is fairly easy to use.
Collaboration & Creativity - Prezi, again its ease of use it a plus.
Learning Tools - Mind Mapping, not the best for everyone but mind mapping works well for some students.

These are tools I looked as well. I do agree with your assessment on these.  I myself have not used Prezi before, but my students have used it for presentations.  There are so many resources I never new existed.