Here are two sites for showing leading indicators and their relative amount to countries. In other words, if you want to see which parts of the world have the largest proportion of refugees or the highest rate of illiteracy, check out these sites.
Pick an indicator on the map (e.g. oil production, illiteracy) and the countries on the map will change size relative to their share of the total.
Similar to the Show World site, but not as flashy. It has a ton of maps, downloadable data, and some animated and pdf versions of the maps for printing. As of this writing, they have over 700 maps.