Using Gapminder, you can visualize World Development Indicators from The World Bank. You will see a scatterplot where each bubble represents a country. The position of the bubble is determined by the indicators on the axes. The size of the bubble represents the population of the country.
The indicators include: carbon dioxide emissions, child mortality, economic growth, internet users per 1000 people, military budget, phone users per 1000 people, urban population.
The software was created by Gapminder, a Swedish foundation that develops information technology for provision of free statistics in new visual and animated ways. Google hosts the software on its servers.
You can also view a video of a Google TechTalk about Gapminder.