Bouncymaps provides users with a look at data on a map in a whole new way. The site shows the "regular" world map with the ability to hover over each county and show data revolving around the criteria (example - United States has 329.1 million people which is 4.3% of the World's population). However, where it gets super "cool" is when you look at the bottom of the map and choose Bouncy Map instead of World Map. The map "changes" to reflect the criteria, not the land size of the country.
There are a number of criteria that includes sub categories as well.