Hans Rosling: Debunking third-world myths with the best stats you've ever seen
Impressive dynamic visual presentation of development data... and at the end of the presentation, one animation showing the advance of the Internet in relation to economic growth across countries of the world. For more information about the software used, see the Gapminder.org website.
This is related to one of my latent interests -- visual representations of data. If you don't know the work of Edward Tufte, please do check it out. I haven't seen a lot of emphasis on dynamic/interactive data in his work. However, he has a greater emphasis on aesthetics in addition to a strong focus on the integrity of the visual representation of data and the analysis of data.