Has interactive map of foreclosure rates
Contains large inventory of MA roads.
Annual traffic data collection for Massachusetts. This data is available online by autoroute and city/town list or as an interactive map. You can view data for a specific town, for numbered routes, or browse data by area. Spreadsheets are downloadable.
Massachusetts Executive Office of Energy and Environmental Affairs: Smart Growth and Urban Environments
Contains urban growth data.
Has housing, economic and social data.
MassGIS is the Commonwealth of Massachusetts’ Office of Geographic Information, a great resource for geospatial technology and statewide data
USGS collected data for MASS.