World Population TreeMap

Here's a cool way to view the world's population: this Treemap application was created by the Hive Group using CIA Factbook data (click image below for larger view; click live Treemap app to run).

might be interesting to add some GDP data by country to this dataset, to view aggregate economic output & potential future impact based on projected population size & GDP per capita growth.

check Univ. Maryland's Viz4All site for a list of other data visualization tools.