This resource, provided by the U.S. Census Bureau, contains demographic and economic data. Using the advanced search option, you can search by NAICS code to find industry data.
From the website: "Founded in 1961, the Marketing Science Institute is a nonprofit, membership-based organization dedicated to bridging the gap between academic marketing theory and business practice."
From the website: "The American Time Use Survey (ATUS) measures the amount of time people spend doing various activities, such as paid work, childcare, volunteering, and socializing."
The website of the brand consultancy Interbrand--this site contains relevant blog postings and more. Also of interest is their yearly ranking of Best Brands.