(5:39 PM)
TIGERurrg
TIGER� Overview - TIGER is a system the US Census Bureau uses to, uh... do mapping things? that's why I should read this overview. the census bureau's tiger site.
update: TIGER files are so named because the Census Bureau's geographical feature database is called TIGER. TIGER files are the Census Bureau's take on shapefiles: they contain data on geographical features (roads, boundaries, census areas, etc). I don't think they contain census data.
