Google has announced a search system named “topic authority” to help surface relevant, expert, and knowledgeable content in Google Search and Google News. Google said this “helps determine which expert sources are helpful to someone’s newsy query in certain specialized topic areas, such as health, politics, or finance.” Not new. Google’s Search Liaison, Danny Sullivan, later said on Twitter that this is an old ranking system that they are just talking about now. “To add a bit more, this isn’t a new system that’s just launched. […]
