Ned Konz' Connectors can be used to draw concept and mind maps in Squeak. I believe the Connectors package is included in the eToys image. If you embed the concept map into a bookmorph, you could program the map to actually jump to different pages in the book, depending on what node you selected. I have posted Ned's Connector tutorial on my wiki: http://squeak.pbwiki.com/Connector%20Tutorial
Dave
squeakland@lists.squeakfoundation.org