A web site is a collection of openly obtainable, interlinked Website that share a single domain name. Internet sites can be produced and maintained by a private, group, organisation or organization to serve a selection of objectives. Together, all openly available sites make up the Net. Internet sites can be found in an almost endless selection, consisting of instructional websites, information websites, discussion forums, social media sites, e-commerce sites, and so forth.
What is Pligg?

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