Answer:
WWW are initials that stand for World Wide Web and is used to designate sites as part of the hypertext transfer protocol (HTTP).
A "web" is a network of fibres or cables connecting different points (spiders make webs to catch flies.)
The Web is one of the services available on the Internet. It is a collection of web documents and pages that form accessible sites using the international connection between their users (via the Internet). It lets you access millions of pages through a system of hyperlinks. Because it is "world-wide," it was originally called the World Wide Web or WWW.
See the Related Links for more info.