The first step in e-commerce after one has established a web presence is to offer products and sell on the web. Merchant enables a business to offer e-commerce by making their products available through the web. Existing catalogues can be made into an e-catalogue. An aggregation mechanism that presents goods or services for sale and enables users to buy them in electronic marketplaces. A Web site that maintains catalogs from multiple suppliers.
Buyers enter the site, view many suppliers at once and purchase products or services.
E-malls often charge a fee for tenancy or membership, may take title to the goods themselves, and are selling environments based on traditional concepts of print and broadcast advertising that entice visitors to buy. The products could come from multiple suppliers.