A site is a collection of openly accessible, woven Websites that share a solitary domain. Web sites can be created as well as kept by an individual, group, business or company to serve a selection of functions. With each other, all publicly easily accessible web sites comprise the Internet. Sites can be found in an almost endless selection, consisting of academic sites, information sites, discussion forums, social networks websites, e-commerce 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.