World Population Applet from the University of North Carolina allows you to "see" the current world population. You can also enter past and future dates to see what the world population was or will be. {Census.gov:: World POPClock Projection} {CIA.gov:: The World Fact Factbook -- Rank Order - Population}

U.S. POPClock Projection is provided by the U.S. Census Bureau and it gives an approximation of the current U.S. population.

If we could shrink the earth's population to a village of precisely 100 people, with all the existing human ratios remaining the same, it would look something like the following.

6 Billion and Beyond was produced by the Public Broadcasting System (PBS) and it examines today's -- and tomorrow's -- world population problem. [PBS has "retired" this resource.]