Visual complexity
01 June 2006 - Bits & bobs
A superb compilation of some of the best design mapping 'complex networks' - tube maps, genalogy charts and other network diagrams. Making complex information like this clear is a real artform: www.visualcomplexity.com.
I picked up this link from Alexander Cheek, who has has beautfully designed family tree. It is good to see print designers talking about usability.

