Enthusiastic early adopters, HarperCollins says its most successful community post generated more than a million views. Amy Gesenhues on March 16, 2015 360b / Shutterstock.com Last week, MediaPost.com reported BuzzFeed froze brand publisher accounts for its community publishing platform, ending unpaid content opportunities for brands that had been using the site for content marketing efforts. … Continue reading BuzzFeed Bars Brands From Publishing Content On Its Community Platform →