http://www.instantfundas.com/2010/12/3-tools-to-find-most-sharedpopular.html
Social networking sites such as Twitter and Facebook are mighty useful for sharing links & stories with each other. For Twitter, there are many aggregator sites that let you discover the latest news stories that are actively circulating. As for Facebook, there aren’t many. But here are 3 aggregator sites that can help you find the most popular links shared on the social network.
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