Online advertising also called online marketing or Internet advertising, is a form of marketing and advertising which uses the Internet to deliver promotional marketing messages to consumers...
Web development is a broad term for the work involved in developing a web site for the Internet (World Wide Web) or an intranet (a private network)...
Data mining an interdisciplinary subfield of computer science, is the computational process of discovering patterns in large data sets involving methods at the intersection of artificial intelligence, machine learning, statistics, and database systems.