Amazon starts to 'monetize' speed as it tests a radical new all-day, 10-window delivery service

An Amazon delivery vehicle Bloomberg/Getty Images Amazon is testing a new 24/7 delivery service, offering premium slots for faster shipping options. Amazon's new delivery model can add high costs, but increased sales volume could help turn a profit. Amazon is also testing premium, faster deliveries for an extra fee. Amazon built the "Everything Store." Now it's trying to become the every-hour store. The e-commerce giant is testing a new delivery system that breaks the day into 10 distinct w...