well, i had heard about this kinda site before, and it interested me a lot cause i wana make my design thesis proyect about it. i saw once on discovery channel something similar exept it wanst the web. it was like gogles that had cameras on them and took and image and turned into vertical, diagonal and horizontal lines, and each of these made a different sound, and blind people actually could "see" trough the sound every picture made...i dunno where this study was taking place...i sure wish i could get more info on that, anyway that site is a really good aproach, probably the way to go.
got a lo of work to do if i really wana do a thesis work like that