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Hey, If a site for had a series of articles, and had the privilege of guest posting on several sites, such as mashable, entrepreuner.com, inc.com, and a few other not as big sites. and let us also say that this site is new and currently has pagerank of 0. How would the above benefit the site and the visibility of the articles on google? Also, with guest-posting, is it problematic to have the exact article also on your site? thanks in advance!