Keeping a Close Eye on Amazon's Discounts

摘要

Gareth Milner, a lance corporal in the British Army Intelligence Corps, planned to buy a 3D television from his local Sainsbury's store until he received a Twitter message saying the same model was £35 (about $57) cheaper on Amazon.com. The tip didn't come from Amazon, but from Camelcamelcamel, a website that tracks Amazon's prices and notifies users about discounts.