This story appeared in the Chicago Sun-Times in 1994 when I was first launching the Tutor/Mentor Connection. It's one of many stories that have been written since then. See an archive on the Tutor/Mentor Institute web site.
Here's a couple of places where the mapping strategies have been described.
Story of Tutor/Mentor Connection – MapTogether
Social Edge Maps and What's Possible, June-July 2009
Many of the media stories were the result of the conferences I've hosted every six months since 1994. The next is November 4 and will be held at the Metcalfe Federal Building. I hope you can attend and I hope you or others will write about this so we can create new stories and new interest and investment in this strategy.