This document discusses scaling credible content production by finding authors at scale. It describes a two-round operation to identify authors: first attempting to find authors from big publishers using data crawls and lists, but needing a bigger scale approach. The second round tapped into big data sources like Common Crawl and GNIP to build an application indexing domains for authorship markup, using Amazon Cloud Search and Giraph to rank authors at large scale. The result was tools to find and rank authors called VoiceGraph and VoiceRank.