Online shopping is a form of electronic commerce which allows consumers to directly buy goods or services from a seller over the Internet using a web browser. Consumers find a product of interest by visiting the website of the retailer directly or by searching among alternative vendors using a shopping search engine, which displays the same product's availability and pricing at different e-retailers. As of 2016, customers can shop online using a range of different computers and devices.
A retailer or a shop is a business that presents a selection of goods and offers to trade or sell them to customers for money or other goods. Shopping is an activity in which a customer browses the available goods or services presented by one or more retailers with the intent to purchase a suitable selection of them. In some contexts it may be considered a leisure activity as well as an economic one. The shopping experience can also be influenced by other shoppers. For example, research from a field experiment found that male and female shoppers who were accidentally touched from behind by other shoppers left a store earlier than people who had not been touched and evaluated brands more negatively, resulting in the Accidental Interpersonal touch effect