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A web site is a collection of openly available, interlinked Website that share a single domain name. Websites can be created and preserved by a private, team, service or organization to offer a selection of functions. Together, all openly easily accessible internet sites make up the Internet. Internet sites are available in a virtually endless variety, including educational websites, information websites, discussion forums, social media sites, shopping websites, and so on.
What is Pligg?

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