http://www.tea.state.tx.us/research/
http://www.tea.state.tx.us/
http://www.tea.state.tx.us/peims/standards/
http://txsdc.tamu.edu/tpepp/
http://eire.census
http://eire.census.gov/popest/archives/state/estage80.txt
http://www.census.gov/acs/www/
http://www.fns.usda.gov/pd/cnpmain.htm
http://www.tea.state.tx.us/research/