Add time to your searches.
When doing searches for particular items, a simple scroll into the page (3D would be nice, but not necessary) will examine a dated history of what that search term brought up a month ago, two months ago, a year ago, 5 years ago... etc.
Prior to the internet, this could flip into a history of what was thought to be known about those terms. Graphically, this would be a nice visual of the growth of human knowledge.-- leinypoo13, Jan 11 2008 I like it - not entirely related, but it makes me think of an image of an animal that morphs forwards and backwards in evolutionary time as you zoom the scroll-wheel forwards and backwards on your mouse.
An implementation might be something you could talk to the Wayback Machine people about.-- zen_tom, Jan 11 2008 This is a T-axis scroll, not a true Z-axis scroll......-- 8th of 7, Jan 11 2008 I would call it a W scroll, or is that reserved for the ana-kata type dimension?-- nineteenthly, Jan 12 2008 Why do I often feel like I've missed something....?-- BJS, Jan 12 2008 When I was a child, my great aunt had an Encyclopedia Britannica from, jeez, something like 1928. It was fascinating reading.-- DrCurry, Jan 12 2008 Likewise [DrC] I've got an old ship's doctor's book from the turn of the century. Amazing stuff.-- zen_tom, Jan 12 2008 random, halfbakery