The following documentation is provided to give users additional information on the ACS data products and to provide user assistance.
A guide to the ACS data products on the American FactFinder Website is located on:
http://factfinder.census.gov/home/saff/aff_acs2007_quickguide.pdf
An overview of the changes in the data products since the 2006 ACS, including new products, is available on:
http://www.census.gov/acs/www/Products/2007/prodchanges.html
Guidance on making data comparisons between the 2005-2007 ACS 3-Year estimates, 2007 ACS, 2006 ACS, and Census 2000 is available on:
http://www.census.gov/acs/www/UseData/compACS.htm