National Child Support Enforcement Association
http://www.ncsea.org/

Office of Child Support Enforcement for information on Federal Parent Locator Service, New Hire Registry and Financial Institutions Data match.
http://www.acf.dhhs.gov/programs/cse/

Office of Child Support Enforcement for statistics and research information.
http://www.acf.dhhs.gov/programs/cse/prgrpt.htm