A couple of years ago while producing an event on Mashups, I came across a very cool tool called Gapminder that displays graphical data in a dynamic way. I was fascinated and tried to find more information about it but was dead ended. Happily a friend just send me this  youtube link. The tool was created by a Swedish academic who has established a foundation called Gapminder.org that allows the world to upload and share their world population data. Check out the video on: http://www.youtube.com/watch?v=ax7yGMuH1iE.