This population clock projects that the world human population is just about to reach the 6.4 billion mark.
One wonders where on earth (excuse the pun) all these people are going to fit. It sure is getting kind of crowded around here, don't you think?
Here's one that uses the US Bureau Census data. It differs from the clock you posted.
population clock
Nicely done, Sjef. I like the way you seemlessly back-end into the data feed, wherever that is.
Nowhere. Do you know that even little islands are populated?