The 21st century witnesses a new era based on a knowledge economy. With rapid development of information, Internet and telecommunication technologies, the trend of world trade integration and globalization is both irrevocable and irresistible. Under such influence, E-commerce catches a precious opportunity to achieve its own development. The popularity of online shopping serves as a powerful example of this progress. The product people are willing to buy online is from very common necessities to something special like prescription eyeglasses. It may sounds unfamiliar for some people but it actually becomes well-known. (more…)