A web site is a collection of openly accessible, interlinked Websites that share a single domain. Web sites can be developed as well as maintained by a specific, group, business or company to serve a variety of functions. Together, all publicly easily accessible web sites make up the Web. Websites can be found in an almost countless selection, consisting of instructional websites, news websites, online forums, social networks sites, e-commerce sites, and more.
What is Pligg?

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