While reading bill gates new website The Gates Notes stumbled upon a good link for a presentation by Hans Rosling on What stops Population Growth, it gives a totally different thinking on population growth in world. I liked the way Rosling uses very little time and excellent charts/graphs to convey the points effectively across to the audience.
While in the gapminder website, take a look at the various statistics they have to compare countries and how they stack up against the world. Excellent usage of charts and graphs to compare countries !!