Over the last two decades, the face of retail has been dramatically changed by the internet and the emergence of new digital technologies. Electronic commerce has brought new standards of customer service, convenience and choice for the consumer. For retailers, it has opened up new opportunities to make their operations more efficient, to better understand their customers and to target new customer segments around the world. It has allowed any business, however small, to go global overnight and to enjoy growth rates that are among the highest of any industry segment.