U.S. and World Population Clocks - POPClocks Posted on 2005-02-15 | Tagged : Memo Summary 米国と世界の人口がわかる. Reference U.S. and World Population Clocks - POPClocks http://www.census.gov/main/www/popclock.html via cl.pocari.org - 2005-02-13 http://cl.pocari.org/2005-02-13.html#2005-02-13-1