The really good reason bottle caps on Coca-Cola and other soft drinks are suddenly so hard to open - Wales Online
Why Coca-Cola Bottles Have Yellow Caps Right Now
Coca-Cola 2nd lives caps: why they're really all about consumer behaviour, Media & Tech Network
Coca-Cola's Newest Flavor 'Ultimate' Tastes Like Leveling Up, FN Dish - Behind-the-Scenes, Food Trends, and Best Recipes : Food Network
Coca-Cola and The Premier “2nd Lives” Campaign in Vietnam
Coca-Cola Invents 16 Bottle Caps To Give Second Lives To Empty Bottles
Coca-Cola introduces bottles with attached caps to reduce waste
Customer Campaigns
Coke gives bottles second lives with cap gadgets, Advertising