A. Websites operated by traditional retailers are the fastest growing ones.
B. Online sales grew by over $19 billion last year.
C. Amazon is the biggest online retailer.
D. Shopzilla allows people to compare prices in different stores.
E. Michael Silverstein says the best customers like to mix online and traditional shopping.
F. Circuit city was one of the first businesses of its kind.
G. Tesco has the biggest share of Britain's retail market.
H. Target sells less than Wal-Mart.