Resources

General Business

New York Times
The Economist
Wall Street Journal
Forbes
Fortune
Harvard Business Review
Wharton
Bloomberg Business Week
Inc.

Sustainability

www.sustainablebusiness.com 
http://www.bloomberg.com/sustainability/
http://www.sciencedaily.com/news/earth_climate/sustainability/
http://www.greenbiz.com/
http://www.scientificamerican.com/energy-and-sustainability/ 

General Marketing

American Marketing Association: Professional and trade group
Advertising Age: Marketing and advertising industry news
MarketingProfs: Academic marketing news
emarketer: Digital marketing news and tips
iMedia Connection: digital marketing news and tips
SmartBlog on Social Media: Social media marketing news and tips
Content Marketing Institute: Reference for content marketing--controlling the marketing message
Hubspot

Consumer behavior and behavioral economics

Association for Consumer Research: Consumer behavior professional organization
Society for Consumer Psychology: Consumer psychology professional organizatioon
The Consumerist: Consumer advocacy blog from Consumer Reports
Dan Ariely: Blog from the brilliant and innovative psychologist and behavioral economist

Logistics and Supply Chain

Logistics News
Logistics Management
Supply Chain Digest

Research and Analysis

Forrester
Nielsen