US Census Bureau
Access 
The US Census Bureau website offers a completely free access to all data contained in its pages and archives, along with the possibility of downloading at no cost softwares for further analysis of the census data
Fee Policy 
Access to all data contained on the website is completely free. Several reports not available online can be purchased in other formats
Free Retrieved Material
Along with all reports and databases, the website also provides the downloading of softwares for elaborating census data
Linking Richness
The website contains a relevant number of internal links to data collections, census related issues archives, as well as to many pertinent external links, mainly hypertextually linked