<b> <a href="http://en.wikipedia.org/wiki/Population_growth" rel="nofollow" target="_blank">http://en.wikipedia.org/wiki/Population_growth</a> <a href="http://en.wikipedia.org/wiki/World_population" rel="nofollow" target="_blank">http://en.wikipedia.org/wiki/World_population</a> [yt]6-3X5hIFXYU[/yt] </b>