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An internet site is a collection of publicly available, interlinked Websites that share a single domain. Sites can be created and preserved by a specific, group, company or organization to offer a variety of purposes. Together, all publicly available sites constitute the Net. Websites come in a virtually unlimited selection, consisting of academic websites, information sites, forums, social media sites, shopping 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.