The role of linking lines and causal arrows (in maps); http://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0001TV&topic_id=1&topic=a . Should contribute my research into text/lines http://www.1-900-870-6235.com/eLearning/LibraryMap.htm (and include link to little animation : http://www.1-900-870-6235.com/eLearning/Images/Word2PointAni.GIF).

As happens with Grokker, KarTOO or Vivisimo (http://www.infovis.net/E-zine/2004/num_138.htm) Autofocus tries to fill the gap that separates us from the bulk of information available, be it on our hard disk or in Internet, by using sophisticated techniques and advanced visualisations. Every one of them has a slightly different philosophy. ..."Nevertheless I think that in all the above-mentioned cases we haven’t yet found the really intuitive visualisation for the normal, graphics and visualisation illiterate, user for whom we need to create self explaining and self evident systems or it will be very difficult to bridge the gap between the traditional, textual-output search engines and the ones that will let us quickly find what we are looking for in a clear and intuitive way." http://ww.infovis.net/E-zine/2004/num_151.htm

Best "about us" A Brief History of ... that I've seen in awhile http://www.sparknotes.com/about/