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A website is a collection of openly accessible, interlinked Web pages that share a single domain. Internet sites can be developed and kept by a private, group, business or company to serve a selection of functions. Together, all publicly obtainable sites constitute the Web. Sites can be found in an almost countless variety, consisting of instructional websites, information sites, online forums, social networks sites, ecommerce 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.