Document on World Population Monitoring.

United Nations Population Division

http://www.un.org/esa/population/unpop.htm

National and regional statistics, including some fertility data, for the United Kingdom.

HM Government, National Statistics

http://www.statistics.gov.uk/default.asp

United States births statistics by state, together with related publications.

U.S. Department of Health and Human Services, National Centre for Health Statistics

http://www.cdc.gov/nchs/births.htm#Statebirths

Gateway to information about sexual and reproductive health.

International Planned Parenthood Federation

http://www.ippf.org

Gateway to publications and data from the Demographic and Health Surveys - cross-national surveys that are the successors to the World Fertility Survey.

Macro International Inc.

http://www.measuredhs.com

Demographic data for Canada, including fertility statistics.

Statistics Canada

http://cansim2.statcan.gc.ca/cgi-win/cnsmcgi.pgm?Lang=E&SP_Action=Theme&SP_ID=3867&SP_Portal=2