Look at this article on China's one child policy. Despite already being the world's most populated country China is expecting a baby boom http://www.timesonline.co.uk/tol/news/world/asia/article3047244.ece
Also for revision play the China One Child Policy sword fight game http://www.games4geog.com/cg/china.swf.
Another article here about how China is considering ending it's one child policy http://www.guardian.co.uk/world/2008/feb/28/china.population
