Web development is the work involved in developing a website for the Internet (World Wide Web) or an intranet (a private network).
There are basically two main types of website – static and dynamic. A static site is one that is usually written in plain HTML and what is in the code of the page is what is displayed to the user. A dynamic site is one that is written using a server-side scripting language such as PHP, ASP, JSP, or ColdFusion.
Electronic commerce is a way of doing business over large electronic networks such as the Internet. Also called e-commerce, electronic commerce greatly facilitates transactions between companies and consumers (B2C), between one company and another (B2B), and between individual consumers (C2C).