Hi Everyone -- One of the things I mentioned at the Dec 19 webinar on Data Ferrett and AFF2 was our recorded session from 2009, on using IPUMS to run customized tables using the ACS PUMS. In addition to tables, IPUMS allows you to save recodes for variable values, and run regression and logit regressions. The webinar is archived and available at the AASHTO CTPP page: http://ctpp.transportation.org/Pages/webinardirectory.aspx Here is the link to the Census Bureau page on PUMAs (the geographic unit tied to PUMS). Each PUMA must have a minimum of 100,000 population. Currently, these are the "2000" era PUMAs. The new PUMAs using 2010 Census are "in progress," so data products do not yet use these new geographic units. http://www.census.gov/geo/puma/puma2010.html Also, for novice Census and ACS data users, you might want to direct them to these e-learning modules http://ctpp.transportation.org/Pages/elearningmodules.aspx The set is not yet complete, but they are a good introduction to ACS and CTPP. Elaine Murakami FHWA Office of Planning 206-220-4460 (in Seattle) _______________________________________________ ctpp-news mailing list ctpp-news(a)chrispy.net http://www.chrispy.net/mailman/listinfo/ctpp-news