• As Consumers Seek Savings, Private Label Sales Up 7.4 Percent, Nielsen News, 2009 - Dollar sales of private label products grew by 7.4 percent to $85.9 billion within food, drug and mass merchandisers (including Walmart), with shares recorded at 16.9 percent, according to new Nielsen research. Top dollar growth categories were frozen pizza and snacks (38%), flour (36%) and dry vegetables and grains (31%). Dry grocery and dairy departments accounted for 59 percent of total sales.
• Brand and Line Extensions, Oregon State University - This site lists the top 10 private-label food categories by volume.
• Food Products: National Brand and Private Labels, Economic Research Service (ERS), USDA, 2011 - This publication analyzes the relationship between private label (store brand) and national brand product prices and promotions for two major U.S. grocery store chains during the 2007-09 recession and the year following the recession.
• Marketing Channels: Co-Packing, Alberta Agriculture, Food and Rural Development, Alberta, Canada - This site explains reasons why a company would arrange to have a product produced by a second company.
• Market Update, Private Label Manufacturers Association.
• Private Label - A magazine covering the private label industry.
• Private Labels and Organic Trends. Private Labels for Premium Products – The Example of Organic Food, University of Kiel, Germany, 2004 - This study found private labels accounted for 45 percent of the organic products sold in German food retailing.
• Private Label Growing Rapidly, Brandweek, 2009.
• Private Label 2009: Game-changing economy taking private label to new heights, Supermarket News, 2009.
• Spending and Saving Money, Food Marketing Institute - Graphs and facts reflect current supermarket shopping trends. Eighteen percent of consumers said they buy store or lower-priced brands instead of national brands.
• Twenty Years of Competition Reshape the U.S. Food Marketing System, Amber Waves magazine, ERS, USDA, 2008.
• Value-Conscious Consumers Are Trading in Brand names for Private Labels, United Press International, June 27, 2010.

 Links checked January 2011.