In answer to Amazon's Prime Service, Walmart has cut the delivery time of its ShippingPass e-commerce subscription program to two days rather than three.

Amazon's business marketplace has generated $1bn in sales in its first year, and is growing at a rate of 20 percent month over month.

EBay Enterprise has merged with Innotrac to create a new type of enterprise as an omnichannel commerce technology and solutions provider called Radial.