A web site is a collection of openly available, interlinked Internet pages that share a single domain. Websites can be developed as well as preserved by an individual, team, service or company to serve a variety of functions. With each other, all publicly accessible internet sites constitute the Internet. Internet sites come in a nearly limitless range, including instructional websites, information sites, online forums, social networks websites, e-commerce websites, 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.