E-commerce is the word used to refer to a website selling items or services via a shopping cart. What this means is that you need a way to show products and prices, take the customer's information (including credit card info), process the credit card transaction, and complete the sale by letting the customer know his purchase has gone through. (Then, of course, you have to ship the goods or deliver the service.)

Web Standards are technologies established by the World Wide Web Consortium (W3C), founded in 1994 by Tim Berners-Lee, the original architect of the World Wide Web. The W3C purpose was to develop open standards so that the Web evolved in a single direction rather than being splintered among competing factions. W3C develops specifications, guidelines, software and tools to lead the Web to its full potential. These technologies were designed to future-proof documents published on the Web, which ensures those documents are accessible an ever increasing amount of people via more types of Internet browsers and devices.