By popular demand, I have posted my mind map of the Hurricane Katrina video. The mind map has grown well beyond a normal mind map as I have used it to demonstrate the mind map process in each class. Your mind map does not need to be this extensive. I use Novamind to create my mind maps, but pencil, paper, and markers are all you need.
My Hurricane Katrina Mind Map
http://www.paulblankenship.com/katrinamindmap.pdf
Remember to follow my Mind Map Rubric
http://rubistar.4teachers.org/index.php?screen=ShowRubric&module=Rubistar&rubric_id=1095617&PHPSESSID=ba89d3c30b304629a0cd38e658cc8850