Census Data Mapper | Chris' Regional Geography | Scoop.it

"This web mapping application provides users with a simple interface to view, customize, save and print thematic maps of the United States, using data from the 2010 Census.  The beta version contains a set of 2010 Census data relating to age and sex, population and race, and family and housing in the United States by county or equivalent entity." 

Via Seth Dixon, Darius Kidd