Companies & IndustriesStarbucks Expands Its Loyalty Program to Grocery StoresBy Susan Berfield on March 21, 2013 http://www.businessweek.com/articles/2013-03-21/starbucks-expands-loyalty-program-to-grocery-stores#r=hpt-ls (Corrects number of active members in Starbucks' loyalty rewards program) By most standards, Starbucks (SBUX)‘s loyalty rewards program is successful. As of October 2012, some ..