7,000,000,000

World population clocks - estimate that we will pass 7 billion at some point today here

7 Billion Actions - Making the world a better place for all 7 billion of us here

NY Times: Mathematical biologist Joel Cohen on the humanity and the human population growth imperative here

7 Billion mark may also represent a shift in world population patterns - shrinking not expanding here

Could continued population growth spell a turn to a "Soylent Green" future ? Here