http://tools.google.com/gapminder
This was just so nicely presented and easy to use that I had to share. You can bring up lots of measures of poverty/wealth and compare those in different nations over time. Yes, it sounds boring but play about with it and learn something.
I learned south africas life expectancy plunged after 1980 by about 20 years. Also, India's GDP/capita increased as the %age of women in its workforce decreased! Cause or effect>?