Marble Institute of America: Industry and Professional Resources

New construction in the residential housing market represents about 30% of the countertop market.

Housing Zone, Economic Information provides market data for the residential construction industry. www.housingzone.com/topics/economics.asp
National Association of Home Builders provides economic forecasts and how housing impacts the US economy. http://www.nahb.org/page.aspx/category/sectionID=138
National Association of Home Builders, State & Local Data NAHB is not just for builders, but serves the whole home building industry. About one-third of NAHB's members are home builders and/or remodelers, while the remaining two-thirds work in closely related fields such as mortgage financing and building products. http://www.nahb.org/default.aspx
Fannie Mae's Economics & Mortgage Market Analysis group provides analysis of current and historical data, and forecasts economic trends in the housing and mortgage-finance markets. http://www.fanniemae.com/media/economics/index.jhtml?p=Media&s=Economics+%26+Mortgage+Market+Analysis