A site is a collection of openly available, woven Websites that share a solitary domain. Websites can be produced and preserved by a private, team, service or company to serve a range of purposes. Together, all openly accessible web sites constitute the Web. Sites can be found in an almost limitless selection, consisting of educational websites, information sites, discussion forums, social media sites, shopping websites, and so forth.
What is Pligg?

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