Recently Google announced that the latest version of Google's "human rater" handbook has leaked once again. It gives search marketers and webmasters a few clues into how Google determines quality of web pages.
Here's a graphic from audiencebloom that takes a closer look at 10 hidden gems from Google's leaked quality rater guidelines.
Make sure you content is written by experts, Why? Because Google has placed a strong emphasis on perceived expertise for determining quality.
Cite, reference, and link to other expert sources in your content. Why? Because Google has placed a strong emphasis on trustworthiness for determining quality. Citing outside sources builds trust.
Encourage customers to leave positive reviews on Google+, Yelp and other review sites. Because Reputation is an important consideration when using the High rating.