https://www.gliffy.com/go/html5/5710613 - Flowchart
https://bubbl.us/?h=2048be/417cbd/21mGCvZU7gw4A&r=1418113049 - Mind Map
I chose these two formats for my blog because I enjoyed how easy they were to create. I preferred bubbl.us over gliffy because there were easy keyboard controls that allowed for ease of access. Both offered organization and easy navigation for the sites.
I would use either of these in my classroom to either create organizational charts for my students throughout subjects, or they could create their own when they need to layout a story or informational text writing assignment. These would both be very easy to create a tutorial for teaching these as well as easy navigation for students.