Online Mapping and GIS
American FactFinder at the U. S. Census Bureau
<http://factfinder.census.gov/>National Atlas of the United States ( U. S. Dept. of the Interior)
<http://www.nationalatlas.gov/>
Redistricting within each state
Mapping our Future: A Public Interest Guide to Redistricting
<http://www.fairvote.org/frames/reports/remanual/frames.htm>National Conference of State Legislatures
<http://www.ncsl.org/programs/legman/elect/statesites.htm>"The Mapmaking Mess" from Governing.com
<http://governing.com/archive/2001/jan/redist.txt>