The Internet is the computer network that allows you to view this text. It hosts the World Wide Web.
The World Wide Web or WWW is a major application running on the Internet, over the TCP/IP protocol. Client tools are typically web browsers, designed to view data which can be supplied from a vast number of sources.
The Wipipedia is one such source of information, providing thousands of 'pages' of information which is nevertheless a tiny fraction of all that is available.
- Internet The wikipedia article on the subject
- World Wide Web (Wikipedia article)
- Dungeonnet.com "The most comprehensive directory of BDSM websites in the world"