New Scientist reports that Google is working on a system where it can determine the trustworthiness of a page not by who is linking to it, or how many incoming links it has, but by the number of facts it contains. A score, called a Knowledge-Based Trust score, would be computed for each page by cross referencing the content with facts stored in Google’s Knowledge Vault. The Knowledge Vault is a database of 2.8 billion facts extracted from the web, and is the primary source of information behind theboxes that appear on the right side of some searches. The more facts contained on a page, the better it will rank. In instances where few facts are found on a page, Google will check the accuracy of other content contained on the site to determine how well it can be trusted overall. Get the full story at Search Engine Journal