American FactFinder#census#demographics#statistics#research#population·factfinder.census.gov·Jan 31, 2006American FactFinder
North America People Groups Project#demographics#resources#statistics#census#population·peoplegroups.info·Aug 16, 2006North America People Groups Project
Neighboroo#demographics#maps#statistics#visualization#people#population·neighboroo.com·Mar 1, 2007Neighboroo
United Nations Population Division Home Page#population#statistics#world#demographics·un.org·Apr 27, 2007United Nations Population Division Home Page
By the Numbers - USATODAY.com#demographics#population#trends#statistics·usatoday.com·Sep 25, 2007By the Numbers - USATODAY.com