The crux of my (BillSeitz) preference for WordsSmashedTogetherLikeSo over the FreeLink approach to AutomaticLinkGeneration in a WiKi is that I believe it increases the "bushiness" of the space.
In 1997 LeoEgghe? (LEgghe) wrote an article on the "FractalAndInformetricAspectsOfHypertextSystems?". http://www.google.com/webhp?q=%22fractal+and+informetric+aspects+of+hypertext+systems%22#q=%22fractal+and+informetric+aspects+of+hypertext+systems%22&safe=offIn the paper he defines the FractalDimension of a HyperText based on the number of (internal) links it includes: http://en.wikipedia.org/wiki/Fractal_dimension