Starbucks: Lessons from a social experiment

What happens when everyone has access to your Starbucks card? Jonathan Stark found out.

Earlier this summer, author Jonathan Stark (@jonathanstark) launched a social experiment by releasing his Starbucks card to the general public. Based on the "take a penny, leave a penny" tray near some stores' cash registers, Stark encouraged people to use his Starbucks card — to spend the money on it and/or to add cash back to it. While Stark never put any stipulations on the process, some observers were taken aback when another developer, Sam Odio, explained how to use Jonathan's card to buy an iPad. Read More