Tyler Cowen points to a tremendous resource, NationMaster. You'll find graphs, stats, maps, flags and all sorts of other information from around the globe.
For instance, consider the map of Kiribati to the left. You may not need it for the next 100 years, but it's an example of what's available.
As for Mr. Cowen, find him at the Marginal Revolution or the Volokh Conspiracy.