unstats.un.org
Some statistics collected by the United Nations.
The trick with all of this information is how to present it online so it can be easily searched. Hans Rosling has an idea about that. His website project,GapMinder.org allows you to visually interact with all this online data. It's well worth checking out. Here's an example:
PRACTICE ACTIVITY: Try to find the population of your local community using one of the websites above. Then try using Gapminder.org to compare countries and regions.
TO KEEP ON LEARNING: To find out more about online population databases search the internet for:
Population data
Online statistics
Population statistics
Gapminder