Erin Griffith tells us how Google wants to prioritize content created by verified writers with authority in certain topics in its results. PageRank aimed at helping to filter spam to create more credible search results, but as Griffith notes, SEO spammers and link scheme experts still found ways around it. So in walks Author Rank. Google verifies individual writers through its social network, Google+, making the network more important. She tells us how it works.