International Income and Lifespan Over Time, Refined, with Play by Play

Swedish Professor Hans Rosling, a statistical visionary. Seriously, this stuff is boring as a dry flapjack until he starts doing play by play on it.
This BBC piece is the short bit, for a real earth shaker, watch this TED talk he gave in 2009 to the US State Department.

The best part? The statistical algorithm and display program he is using is freely available, and if it isn't the coolest data-correlation device available for socio-economic information, nothing is. Gapminder is the name of the group and software. (Interesting oddity? Rate of Child abuse / Washington DC)