A web site is a collection of publicly available, interlinked Web web pages that share a single domain. Websites can be created and maintained by a specific, group, business or company to serve a selection of functions. With each other, all publicly accessible websites constitute the Net. Sites are available in an almost endless variety, including instructional sites, information websites, online forums, social media sites sites, shopping sites, and also so on.
What is Pligg?

Pligg is an open source content management system that lets you easily create your own user-powered website.