U.S. Demographic Maps, Census 1790-2010 -- "over 15,000 demographic and socio-economic maps of the United States between 1790 and 2010"
U.S. Religion Maps
Provides current data about people, households, and housing.
EASI starts with Census Bureau data, but incorporates other sources [2010 Decennial Census, American Community Survey (5 year version), Population Estimates Program, ACS Public Use Microdata Sample, US Postal Service mailable households, etc.] to estimate at the block group level for some data not available from the Census. EASI also provides current year and five year projections.