DUBLIN--(BUSINESS WIRE)--Research and Markets (http://www.researchandmarkets.com/research/34km5k/ecommerce_it) has announced the addition of the "E-commerce IT Spending in US 2015-2019" report to their offering. Electronic commerce, commonly called e-commerce, refers to the process of buying and selling products and services over computer networks. With the changing business landscape worldwide, several industries such as traditional retailers, banks, and travel agents have been aggressively em